Brand
Guidelines

The complete identity system: mark, colour, type, layout and application. Everything needed to make something that looks like Patrimoine 365 — and nothing that doesn't.

VERSION 1.1  ·  AUGUST 2026  ·  KALITY LTD
Contents

What is in here

Twelve sections. The rules that matter most are on pages 13, 16 and 24 — the mint rule, the contrast ledger, and the balance between green and accent.

  1. The brand in one page03
  2. The mark and its construction04
  3. The lockups05
  4. Clearspace and minimum size06
  5. Logo colour by ground07
  6. Logo misuse08
  7. The eight identity colours09
  8. The extended system10
  9. Tint and shade ramps11
  10. The contrast ledger12
  11. The mint rule13
  12. Status colour14
  13. Chart colour15
  14. Dark mode16
  15. Colour balance17
  16. Inter18
  17. The type scale19
  18. Numerals and figures20
  19. Typographic rules21
  20. Grid, space and elevation22
  21. Iconography23
  22. Graphic elements24
  23. Interface components25
  24. Stationery26
  25. Digital applications27
  26. Voice and words28
  27. Accessibility29
  28. Asset index and naming30
Patrimoine 365 · Brand Guidelines v1.102
01 · Foundation

The brand in one page

Patrimoine 365 keeps a record. Properties, leases, tenants, payments — held accurately, in one place, for whoever needs to see them.

That is what the identity has to carry: a business where being right matters more than being loud. The deep green does the carrying. It is serious without being severe, and it holds a page on its own.

The mint stops it from becoming an accounting ledger. It appears rarely and always deliberately — on the 365, on what is active, on what has been paid. Used at that volume it is a signature. Used everywhere it is another mint fintech.

Positioning line

Balanced by design.
Built for growth.

Attributes

  • Consistent. The same figure means the same thing on every screen and every document.
  • Modern. Current, not fashionable. Nothing here should need redrawing in two years.
  • Trustworthy. Legible before it is beautiful. Clear numbers, honest states, no decoration over data.

The three colours people should recognise

If you remember one thing: the green carries the identity, the mint provides the spark, and the ivory is what makes a page feel like Patrimoine rather than like software.

Foundation03
02 · Logo

The mark

Two pillars hold three bars. The pillars are the property; the bars are the records kept against it. The form is symmetrical because the product's job is to make two sides agree.

Construction

Drawn on a 64-unit square. Every edge lands on a whole unit — the mark can be rebuilt exactly from the table below without reference to the artwork.

ElementXYWHR
Pillar, left2410562
Pillar, right52410562
Bar, upper18928102
Bar, middle182728102
Bar, lower184528102

Bar gap 8 units — 80% of bar height. Never let it fall below 50%: the bars merge into a block when printed small or reproduced at low resolution.

64 × 64 unit square 10 28
The mark on its grid The proportion 10 : 6 : 28 : 6 : 10 across, and 5 : 10 : 8 : 10 : 8 : 10 : 5 down, is the mark. Everything else is a rendering of it.
Logo · construction04
03 · Logo

The lockups

Five approved forms. The horizontal lockup is the default and should be the first choice in every situation where it fits.

Horizontal, lightThe default. White, Warm Ivory and Mist grounds.
Horizontal, reverseGreen, Ink and Night grounds. The brand at full strength.
MonochromeOne-colour print, engraving, fax, stamps, partner sheets.
StackedNarrow columns, square formats, merchandise. Not in application headers.
Mark aloneOnly where the name is already present: app icon, avatar, favicon, loading state.
Tile and avatar22% corner radius on the tile. The circle is masked, never redrawn.
Logo · lockups05
04 · Logo

Clearspace and minimum size

Clearspace

Keep clear on all four sides a margin equal to half the mark's height — 32 units, marked x below. Nothing enters that space: no type, no rule, no image edge, no other logo. Where the layout allows it, give more.

xx xx x = mark height ÷ 2

Minimum size

Below these sizes the bar gaps close and the mark reads as a solid block. There is no situation in which going smaller is better than dropping to the next form down.

FormScreenPrint
Horizontal lockup24 px high8 mm high
Stacked lockup32 px high11 mm high
Mark, three bars24 px7 mm
Mark, two bars16 px5 mm

Below 24 px the mark drops a bar

A dedicated two-bar mark exists for favicons and small tiles, with thicker strokes and wider gaps. At 16 px use the pixel-snapped file, which is drawn on a 16-unit grid so every edge lands on a whole pixel.

Three-bar mark · two-bar mark at 48 px, 32 px · pixel-snapped 16 px file.
Logo · clearspace06
05 · Logo

Logo colour by ground

The lockup is coloured by the ground it sits on, not by preference. The mark and the 365 carry brand colour; the word Patrimoine takes the primary text colour of the ground — Ink on light, Mist on dark — which is why the lockup sits correctly inside a page of running text.

GroundPillarsLedger barsPatrimoine365File
White, Warm Ivory, Mist #123D35#0E7A56 #17201E#0B6449 logo-light
Patrimoine Green, Ink, Night #FFFFFF#39D6A3 #F2F6F4#39D6A3 logo-reverse
One-colour, light #123D35 throughout logo-mono-green
One-colour, dark or photographic #FFFFFF throughout logo-mono-white
Black-only print #17201E throughout logo-mono-black
The 365 in #0B6449 — 7.2:1Reads as the brand green, and survives print, projection and small sizes. #39D6A3 does none of those things on a light ground.
Full-strength Mint on light — 1.9:1 Supplied in 02-Logo/alternates because it was originally specified. It fails every contrast threshold and disappears in print. Do not use it.
Logo · colour07
06 · Logo

Logo misuse

The lockup is a fixed asset. It is placed, scaled and coloured according to the rules on the previous pages, and it is never rebuilt.

Never stretch or condense.
Never recolour outside the approved set.
Never place white on Mint. 1.9:1.
Never add shadow, glow or outline.
Never rotate or set on an angle.
Never use the light lockup on a dark ground.
Patrimoine 365
Never retype the wordmark. The lockup has fixed spacing.
Sub-brand
Name Here
Never lock the mark to other names or create sub-brands.
Logo · misuse08
07 · Colour

The eight identity colours

Three brand colours people should come to recognise, and five neutrals that do the work. Every other value in this document is a tint, a shade or a state of one of these eight.

Patrimoine Green
#123D35 · 18 61 53
Dominant. Navigation, headings, primary fills, dark bands, logo pillars.
Patrimoine Mint
#39D6A3 · 57 214 163
Accent. Dark grounds and fills only — never text or an icon on light.
Warm Ivory
#F7F5EF · 247 245 239
Brand ground. Marketing, documents, email, print. Not inside the product.
Ink
#17201E · 23 32 30
Body text. Also the card surface in dark mode.
Slate
#66736F · 102 115 111
Secondary text and captions, 15 px and above. Never on green.
Mist
#F2F6F4 · 242 246 244
UI ground and recessed surfaces. Primary text colour in dark mode.
Border
#DDE6E2 · 221 230 226
Dividers and card edges. Not strong enough for control outlines.
White
#FFFFFF · 255 255 255
Cards and data surfaces. The clean ground inside the product.
Colour · identity09
08 · Colour

The extended system

Eight flat values cannot express a hover, a focus ring, a selected row or a dark theme. These five are added for that — all of them tints, shades or grounds of colours already in the identity. Nobody is asked to recognise thirteen colours; they are asked to recognise three.

Mint Deep
#0E7A56
Mint that survives light grounds — 5.3:1 on white. Links, focus rings, active icons, the 365 on light.
Mint Wash
#E6F7EF
Selected rows, active navigation fill, positive badges.
Border Strong
#7E8C87
Input outlines, checkbox and radio edges — 3.5:1, the minimum for a control boundary.
Night
#0E1614
Dark-mode page ground, one step below Ink so Ink can be the card above it.
Night Border
#2C3936
Dark-mode dividers. Border #DDE6E2 is far too bright to invert.
Night Text 2
#A7B4B0
Dark-mode secondary text. Slate on green is 2.4:1 and unreadable.

Why Border stays in the official eight

#DDE6E2 remains part of the identity — it is the hairline that makes a card feel drawn rather than floated. What changes is its scope. It divides; it does not enclose a control. At 1.3:1 against white and 1.2:1 against Mist, an input outlined in Border is an input nobody can find.

Rule. Border for dividers and card edges. Border Strong for anything a person is meant to click, type into or tick.

Colour · extended10
09 · Colour

Tint and shade ramps

Two ramps, anchored on the brand colours: Green 900 is Patrimoine Green and Mint 400 is Patrimoine Mint. Use them for hover and pressed states, chart fills, washes and dividers — not to introduce new brand colours by the back door.

Green — hue 168°, anchored at 900

25
50
100
200
300
400
500
600
700
800
900
950

F5FAF9 · EBF5F3 · D6EBE7 · B0D8D0 · 82C0B3 · 4EA291 · 347F70 · 246659 · 1C544A · 16463D · 123D35 · 0B2823

Mint — hue 160°, anchored at 400 and 700

25
50
100
200
300
400
500
600
700
800
900

F3FCF9 · E6F9F3 · CDF4E7 · A3EBD3 · 70E1BB · 39D6A3 · 21BA87 · 13966A · 0E7A56 · 0B6044 · 084934

Where the ramps are allowed. Hover and pressed states, chart fills, washes behind quiet sections, dividers on coloured grounds, and the 25–100 steps as page tints.

Where they are not. As a second brand colour. Green 400 is not "the lighter Patrimoine green" — it is a state. A page led by Green 400 is not on brand.

Colour · ramps11
10 · Colour

The contrast ledger

Every pairing the identity implies, measured against WCAG 2.1. AA needs 4.5:1 for body text, 3:1 for large text and control boundaries. What fails here fails on screen and in print too — these are not preferences.

PairingRatioVerdictSample
Ink on White16.6:1AAA Lease renewed
Ink on Warm Ivory15.3:1AAA Lease renewed
Green on White12.0:1AAA Lease renewed
White on Green12.0:1AAA Lease renewed
Mint on Night9.9:1AAA Lease renewed
Mint on Ink9.0:1AAA Lease renewed
Ink on Mint9.0:1AAA Lease renewed
Mint on Green6.5:1AA Lease renewed
Mint Deep on White5.3:1AA Lease renewed
PairingRatioVerdictSample
Slate on White4.9:1AA only Lease renewed
Slate on Ivory / Mist4.5:1AA edge Lease renewed
Border Strong on White3.5:1Control Input field
Slate on Green2.4:1Fail Lease renewed
Mint on White1.9:1Fail Lease renewed
White on Mint1.9:1Fail Lease renewed
Mint on Warm Ivory1.7:1Fail Lease renewed
Border on White1.3:1Divider only Input field
Border on Mist1.2:1Divider only Input field

The full table, including dark-mode and status pairings, is in 03-Color/contrast-ledger.csv.

Colour · contrast12
11 · Colour

The mint rule

Mint is a surface colour on light grounds and an ink colour on dark ones.

Record payment
Mint as a fill The label on it is Ink. 9.0:1. Never white — that is 1.9:1.
Paid in full
Mint as text on light Becomes Mint Deep #0E7A56. 5.3:1. Still reads as mint.
Paid in full
Mint as text on dark Full strength. 9.9:1 on Night, 9.0:1 on Ink.

Where mint is allowed in the product

  • The active navigation item
  • The focus ring
  • The selected row or card
  • Positive figures and paid states
  • The logo

That list is the entire budget. Anything added to it comes out of something already on it.

Why the discipline matters

A bright mint on every button, badge, chart and icon is the single fastest way to make this look like every other fintech product. It also destroys the signal: if everything is highlighted, nothing is.

The deep green is what people should recognise. The mint is what tells them where to look.

Colour · the mint rule13
12 · Colour

Status colour

A product about rent that is late, deposits that are held and payments that failed needs a way to say so. Positive uses the mint family, so the brand stays coherent. The other three deliberately leave the green world — a warning must never be mistaken for a brand element.

Paid
Text#0E7A56
Surface#E6F7EF
Border#A8E3CA

Paid, active, completed, verified.

Due in 3 days
Text#B45309
Surface#FEF6E7
Border#F0D391

Due soon, pending, needs attention.

Overdue
Text#B42318
Surface#FEF3F2
Border#FCC9C4

Overdue, failed, destructive.

Under review
Text#175CD3
Surface#EFF6FF
Border#B7DCFF

Informational, in progress, neutral.

Colour is never the only signal. Every status carries a word. A green dot and a red dot are the same dot to eight per cent of men.

Status colour is not brand colour. Do not use Danger red as a decorative accent, and do not use Patrimoine Green to mean "success" — it is the navigation, and the two would become indistinguishable.

Colour · status14
13 · Colour

Chart colour

Sequential — one measure, varying in intensity

123D35
1B5A48
237A5E
2EA47C
39D6A3

Occupancy heat, collection rate over time, arrears ageing. Dark is low, mint is high — keep that direction consistent everywhere so the reading is learned once.

Categorical — series that must never be confused

123D35
39D6A3
66736F
B45309
175CD3

Five is the ceiling. Beyond five, split the chart — a sixth colour in a green-led palette collides either with the brand or with a status.

Collections, last six months

100%75 5025 MarAprMay JunJul Aug

One series, one colour. Mint marks the endpoint — the bar the reader is actually being asked to look at — and nothing else on the chart competes with it.

Never distinguish two series by Mint and Mint Deep alone. The difference survives a screen and disappears on a projector, in greyscale and in print.

Colour · charts15
14 · Colour

Dark mode

The palette inverts on itself. Ink becomes the card, Mist becomes the text, and mint finally runs at full strength. Only four values are new, and Warm Ivory sits it out entirely.

RoleLightDark
Page ground#F2F6F4 Mist#0E1614 Night
Card surface#FFFFFF White#17201E Ink
Raised surface#FFFFFF + shadow#1E2926
Primary text#17201E Ink#F2F6F4 Mist
Secondary text#66736F Slate#A7B4B0
Divider#DDE6E2#2C3936
Control outline#7E8C87#55635E
Brand / heading#123D35#39D6A3
Accent, safe for text#0E7A56#39D6A3
Selected fill#E6F7EF#14312A
OUTSTANDING
18,420.00
4 paid 2 overdue

Deep green is not the dark background. It stays the brand colour in both themes. On Night it becomes a band, a header, a filled button — a shape on the page, not the page.

Warm Ivory has no dark equivalent and does not need one. It is a brand surface for marketing, documents and email, none of which invert. Looking for a "dark ivory" is how a palette loses its warm-and-cool split.

Colour · dark mode16
15 · Colour

Colour balance

The ratio is not the same everywhere. A marketing page is looked at for six seconds; the product is looked at for six hours. The instinct behind both numbers is the same — the green carries it, the mint sparks it.

Marketing, print, email — 70 / 20 / 10

70 · Ivory, White, Mist
20 · Green
10 · Mint

Green carries whole bands, the footer and the CTA. Mint appears in the wordmark, one call to action and the graphic elements.

Product interface — 85 / 12 / 3

85 · White and Mist
12 · Green

Green is the sidebar and the primary button — nothing else. Mint is the active indicator and positive figures. At 20% green a dashboard of leases and payments becomes a green wall, and colour stops meaning anything because everything has it.

MarketingGenerous ivory, one green band, one mint action.
ProductGreen sidebar, white data. Mint only where something is active.
Not thisMint as a surface behind content. It cannot carry text and it stops being a signal.
Colour · balance17
16 · Typography

Inter

Aa

ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789   €£$₵&@()[]{}/?!
àâçéèêëîïôùûüÿœæ

Why Inter

A neutral grotesque drawn for screens: tall x-height, open apertures, and figures that stay distinct at the sizes a table of rent actually gets read at. It carries the whole system on its own — headings, interface and every amount — so nothing here depends on a second family being installed. Licensed under the SIL Open Font License, so it ships in the app, on the site, in documents and in email with no per-seat cost.

Three weights, no more

WeightUse
Regular 400Body copy and long-form reading.
Medium 500The interface: buttons, labels, nav, table headers.
SemiBold 600Headings and the wordmark.

Medium is the most-used weight in the product and the easiest to forget. Bold 700 and above are not part of the system; if something needs more emphasis than SemiBold, it needs to be bigger or to have more space around it.

Fallback stack. Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif — never a bare sans-serif, which resolves to Times on some Windows configurations.

Typography · Inter18
17 · Typography

The type scale

Eleven steps. Anything not on this list is off the system — including "just a bit bigger".

Display56 / 60 · 600
−0.025em
Every lease, accounted for
H140 / 48 · 600
−0.02em
Portfolio overview
H232 / 40 · 600
−0.015em
Outstanding balances
H324 / 32 · 600
−0.01em
Maple Court, Unit 12
H420 / 28 · 600
Recent transactions
Body large18 / 28 · 400
Lead paragraphs and marketing body copy.
Body16 / 24 · 400
max 70 char
The security deposit is held against the lease and released after the final inspection.
Label14 / 20 · 500
+0.005em
Payment method · Due date · Tenant · Property
Caption13 / 18 · 400
Updated 30 August 2026 at 14:02
Micro12 / 16 · 500
+0.06em caps
Overdue · Table header · Eyebrow
Data14 / 20 · 400
tabular · ss02
₵125,560.00   ₵18,420.00   PM-F1040   2026-08-30
Typography · scale19
18 · Typography

Numerals and figures

This is a product that displays money. A column of amounts that does not align reads as a broken system before anyone has read a single figure.

Tabular numerals are mandatory

PROPORTIONAL
1,250.00
18,420.00
960.50
125,560.00
Ragged. Unreadable as a column.
TABULAR
1,250.00
18,420.00
960.50
125,560.00
Decimal points align. Totals check by eye.

Applies to every amount column, every total, every date in a table, and every figure in a chart axis — in the interface, in PDFs and in email.

Codes and references

There is no monospace in this system. Anything a person will read aloud, dictate or type back in is set in Inter with tabular figures, a little extra tracking, and Inter's ss02 Disambiguation set, which slashes the zero and puts a tail on the lowercase l. That is what stops a code being misheard — not a second typeface.

PM-F1040
font-feature-settings: "ss02" — so this cannot be read back as PM-F104O, and 0 never has to be spelled out as "zero".

Applies to

  • Amounts, balances and totals
  • Reference numbers — invoices, leases, receipts
  • Error codes
  • Dates and timestamps inside tables

Currency

Symbol before the figure, no space: ₵1,250.00. Thousands separated by a comma in English and by a narrow space in French — 1 250,00 FCFA — with the code after the figure where the currency has no symbol.

Never right-align a currency column on the symbol. Align on the decimal point and let the symbol sit flush left in its own column.

Typography · numerals20
19 · Typography

Typographic rules

Measure

Body copy stays between 60 and 70 characters per line. Below 45 the eye jumps; above 80 it loses the return. In a two-column layout, set the column, not the page.

Alignment

Ranged left, ragged right. Never justified — justification in a language with long compound words opens rivers, and French makes it worse.

Case

Sentence case for headings, buttons and labels. Uppercase only at Micro size with +0.06em tracking. Never uppercase a whole heading, and never a whole sentence.

French runs 15–20% longer

Every button, tab and navigation label is designed against its French string, not its English one. If it only fits in English, it does not fit.

Add payment 11 char
Enregistrer un paiement 23 char

French punctuation

A narrow non-breaking space before : ; ? ! and inside « ». Not a plain space — it breaks at the wrong place and leaves the colon stranded at the start of a line.

Headings

Balance the rag on anything over two lines. Never let a heading end on a single orphaned word, and never hyphenate one.

Emphasis

Weight, not italic. Inter's italics exist but the system does not use them for emphasis in the interface — an italic amount is harder to read and an italic label looks like an error.

Links

Mint Deep #0E7A56 with an underline in body copy; colour alone is never the only cue. Inside dense tables, links may drop the underline provided they carry an icon or sit in a column that is entirely links.

Typography · rules21
20 · Layout

Grid, space and elevation

Spacing — 4 px base

4
8
12
16
24
32
48
64
96

4 · 8 · 12 · 16 · 24 · 32 · 48 · 64 · 96 · 128. Nothing off the scale, ever. A 15 px gap is not a decision, it is a mistake that survived review.

Grid

BreakpointColumnsGutterMargin
Desktop ≥1280122464
Laptop ≥1024122448
Tablet ≥76881632
Mobile <76841616
Print A4125 mm20 mm

Maximum content width 1280 px; long-form text never exceeds 720 px regardless of viewport.

Radius

4 chips
6 controls
10 cards
16 modals
full pills

Elevation — green-tinted, never black

sm · cards
md · menus
lg · modals

Shadows carry the brand hue. A pure black shadow over a green-neutral ground reads as dirt.

Motion

TokenDurationApplies to
fast120 msHover, focus, checkbox
base200 msDropdowns, tabs, toasts
slow320 msModals, drawers

Easing cubic-bezier(.2, 0, 0, 1). Nothing animates longer than 320 ms, and everything respects prefers-reduced-motion.

Layout22
21 · Elements

Iconography

Construction

Grid24 × 24
Live area20 × 20
Stroke1.5 px
Corner radius2 px
Cap and joinround

Rules

  • One stroke weight across the whole set. At 16 px the stroke stays 1.5 px — it does not scale down with the icon.
  • Outline, not filled. A filled icon is reserved for the selected state in navigation, and nowhere else.
  • Single colour. Icons take the colour of the text beside them. Mint icons only on dark grounds, or Mint Deep on light.
  • No icon-only destructive actions. Delete, archive and cancel always carry a word.
  • Never the logo mark as an icon. It is a logo. It does not belong in a list of features or beside a menu item.

Optical sizing

Circular forms are drawn 1–2 units larger than square ones so they read the same size. A 20-unit circle next to a 20-unit square looks smaller than it is.

Property · Calendar · Portfolio · Pending · Document · Payment. The circle in "Pending" is drawn to r 9.5 rather than 9 so it matches the squares beside it.
Iconography23
22 · Elements

Graphic elements

Five forms, all taken from the mark. They exist so a layout can feel like Patrimoine 365 without putting the logo on it four times.

PillarFull-bleed column, sidebar, image mask, cover spine.
Ledger barRule, highlight, chart element, section marker.
ArchDoorway form. Image masks, card headers, section tops.
Dot gridAmbient texture on dark bands, at 10–16% opacity. Never behind text.
Ledger stackDecorative record motif for covers, empty states and loading screens. One mint bar per stack — no more.

Rules

  • Elements are shapes, not containers. Do not set body copy inside an arch or on a dot grid.
  • One element per view. Two competing motifs on one screen is decoration, not identity.
  • Mint elements only on Green, Ink or Night. On light grounds they become Mint Deep or Green.
  • The corner radius on every element is 2 units at the mark's scale — the same radius as the bars.
Graphic elements24
23 · Interface

Interface components

Buttons

Save changes Primary
Cancel Secondary
Mark as paid Accent — Ink label
Delete lease Destructive
Save changes Disabled

Height 40 px, radius 6, padding 20 px, label Medium 500. One primary button per view. Hover darkens by one ramp step; pressed by two.

Inputs

Monthly rent
1,250.00
Focused
1,250.00
Error
0.00
Enter an amount above zero.

Outline Border Strong at rest — 3.5:1, the minimum for a control boundary. The focus ring is 2 px Mint Deep with a 2 px offset, and it is never removed.

Table

TENANTSTATUSAMOUNT
A. MensahPaid 1,250.00
K. OwusuOverdue 960.50
S. AdjeiDue 1,410.00

Column heads in Micro caps. Amounts right-aligned with tabular figures. The selected row takes Mint Wash — the one place mint appears in a table.

Interface25
24 · Applications

Stationery

Card, frontGreen bleed edge, white face.
Card, backWarm Ivory face, details left-ranged.
ItemTrimStockFinish
Business card85 × 55 mm400 gsmUncoated, matt
LetterheadA4120 gsmUncoated
Compliment slip210 × 99 mm120 gsmUncoated
FolderA4 +300 gsmMatt laminate, spot UV on mark

Bleed 3 mm on every printed item. Uncoated stock throughout — a gloss finish shifts the green towards blue and the whole palette follows it.

A4 letterhead 20 mm margins, live area 170 × 190 mm. The green header rule is 4 mm with a 70 mm mint lead-in beneath it — the ledger bar, at document scale.

Print colour. Patrimoine Green converts to roughly 70 / 0 / 13 / 76 arithmetically and to 91 / 43 / 69 / 57 through a US Web Coated profile — press-dependent, so proof on the actual stock and record what comes back. Mint is outside the CMYK gamut and prints duller than it appears on screen; specify a spot colour where it has to be right. No Pantone reference is given until one has been matched against a physical guide.

Applications · stationery26
25 · Applications

Digital applications

App icon and favicon 1024 px master, 22% radius. iOS masks the square file; Android uses the square with its own adaptive mask. Below 24 px the two-bar mark takes over.
Share card 1200 × 630. Reverse lockup on Green with the dot grid at 10%. One line of message, one rule, one URL — it is read at thumbnail size.
Presentation 16:9, Warm Ivory ground, 14 px green header rule. Body slides use White; only the title and section slides use Ivory.

Email

Full Name
Role · Patrimoine 365
name@patrimoine365.com  ·  +000 00 000 0000
patrimoine365.com

Signature width 380 px. No image-only signatures, no social icon rows, no quotation. The mark is a PNG at 2× with alt text; everything else is live text so it survives dark mode in the recipient's client.

Transactional email and PDFs

  • Warm Ivory ground, white content card, 16 px body, 600 px maximum width.
  • Amounts set with tabular figures — the same as in the interface.
  • One green button per message. Never a mint button in email: many clients strip the text colour and leave white on mint.
  • Every document carries its reference in the header and the error-code reference in the footer where one applies.
  • Dark-mode email is unreliable across clients. Design for light, and set explicit background colours on every table cell rather than relying on inheritance.
Applications · digital27
26 · Voice

Voice and words

The product handles other people's money and other people's homes. The voice that suits it is plain, specific and calm — closer to a good statement of account than to a marketing campaign.

We sound like

  • Direct. The subject first, the qualification after.
  • Specific. "Due 5 September", not "due soon".
  • Calm. No urgency that the situation does not carry.
  • Bilingual by default. Nothing is written in English and translated later as an afterthought.

We do not sound like

  • Enthusiastic about admin. Nothing is "exciting".
  • Apologetic. An error explains and moves on; it does not say sorry twice.
  • Clever. No puns on rent, property or the word "365".
  • Technical at the user. A person manages notifications, not webhook configuration.

Naming

ProductPatrimoine 365
Short formPatrimoine
NeverP365, Patrimoine365, PAT365
CompanyKality Ltd

One space between the word and the number, always. The 365 is part of the name, not a version number.

Errors

This payment is dated before the lease started.
Choose a date on or after 1 March 2026.
PM-F1040

What went wrong, then how to fix it, then the code.

Buttons

A control says what happens: Record payment, then a confirmation that says Payment recorded. Never "Submit", never "OK", and never a verb that does not match the toast that follows it.

Empty states

Say what will appear here and how to make the first one. An empty table is not an opportunity for a joke or an illustration of a person holding a magnifying glass.

Voice28
27 · Standards

Accessibility

The target is WCAG 2.1 level AA, everywhere — the product, the marketing site, the documents and the email. These are not aspirations; a design that misses them is not finished.

Colour

  • Body text 4.5:1 minimum, large text and control boundaries 3:1.
  • Colour is never the only carrier of meaning: every status has a word.
  • The palette is tested in greyscale and against deuteranopia — the green-and-mint pair is the one at risk, which is why they are never the only difference between two things.
  • Mint never carries text on a light ground. That is the rule this whole system is built around.

Interaction

  • Every interactive element has a visible focus state, and the ring is never removed.
  • Touch targets 44 × 44 px minimum, including in dense tables.
  • Full keyboard operation. Nothing is reachable by hover alone.
  • Motion respects prefers-reduced-motion; nothing auto-plays or auto-scrolls.

Content

  • Body text never below 14 px; secondary text never below 13 px.
  • Text resizes to 200% without loss of content or function.
  • Every image carries alt text; decorative elements are hidden from assistive technology.
  • Both languages are held to the same standard — a French string that overflows is a defect, not a translation issue.

The ledger is the test. Any new colour pairing is measured before it ships, and the result goes into 03-Color/contrast-ledger.csv. If a pairing is not in that file, it has not been checked.

Standards · accessibility29
28 · Reference

Asset index and naming

The package

FolderContains
01-GuidelinesThis document, PDF and HTML source.
02-LogoSVG masters, PNG exports, favicon set, non-compliant alternate.
03-ColorASE, ACO, GPL, Sketch, JSON swatches and the contrast ledger.
04-TypographyInter — TTF and web, four weights, with the OFL licence.
05-TokensJSON, CSS, Sass and Tailwind exports for developer handoff.
06-Graphic-ElementsPillar, bar, arch, dot grid, ledger stack, icon grid.
07-TemplatesStationery, document, share card and slide artwork.

Naming

patrimoine365-logo-light.svg
patrimoine365-logo-reverse@1600.png
patrimoine365-mark-light@512.png
patrimoine365-app-tile@1024.png

Lower case, hyphen separated, @size suffix on raster exports. Never rename a supplied file; if a new variant is needed, it is added to the package rather than edited in place.

Which file, when

SituationFile
Web, app, anything vectorsvg/*.svg
Slides, documents, partnerspng/*@800.png
App stores, large printpng/*@1024.png
Browser tabpng/favicon.ico
iOS home screenpng/apple-touch-icon-180.png
Androidpng/android-chrome-512.png
Social avatarpng/patrimoine365-avatar-circle@512.png

The SVG masters are the source. Every PNG in the package is generated from them. If a logo needs to change, it changes in the SVG and the raster set is regenerated — never the other way round.

One file in this package must not be used. 02-Logo/alternates/patrimoine365-logo-light-brightmint.svg is supplied for reference only. It is the originally specified colouring and it fails contrast at 1.9:1.

Reference · assets30

Consistent. Modern. Trustworthy.

Questions about applying this system, or a case it does not cover, go to the brand owner before anything ships. A rule that turns out to be wrong gets changed here first — not worked around in one layout.

PATRIMOINE 365 · BRAND GUIDELINES · VERSION 1.1 · AUGUST 2026 KALITY LTD · PATRIMOINE365.COM