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Fin

An AI agent that resolves customer service conversations

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Visit site (opens fin.ai in a new tab)Use this style

The style

A bold editorial language with a warm, papery calm. Huge light-weight serif headlines are set extremely tight over pure black-on-white text, with oat and cream panels behind the product story. A single hot orange is saved for small highlights, and actions are plain black or white buttons with small, square-ish corners.

Colours

  • Brand#ff3a00
  • Buttons#000000
  • Background#fdfdfe
  • Text#000000

Click a colour to copy it.

Fonts

Newsreader

For headings

Inter

For everything else

Free fonts that look like Fin’s own, so you can use them anywhere.

Buttons

Get startedContinueCancel

40–41px buttons: black fill with white label for the main action, white with black label for the second; 4–8px corners.

Use this style in your project

Pick the way that suits you. The first one needs no design or coding knowledge.

With an AI tool

Your AI tool builds the page for you, in Fin’s style.

2. Open it in

For developers

Ready-made CSS variables, a Tailwind theme and design tokens, with light and dark modes.

See the code

Make it your own

Change the colours, fonts and shapes, and see the result straight away before you use it.

Customise

Files

The code, ready to copy

Every file says where the style came from.

tokens.css — Colours, fonts and sizes as CSS variables, with light and dark modes.

/* Oat and Ember — design tokens generated by Markdown */
/* Derived from an analysis of fin.ai; how different from the source: a little different (30/100). */
/* Inspired by, not a copy of, the source. Adapt before commercial use; no logos, imagery, copy or proprietary fonts are included. */

:root {
  color-scheme: light;
  --color-background: #fdfdfe;
  --color-surface: #f1eee9;
  --color-surface-muted: #f0f0f1;
  --color-text: #000000;
  --color-text-muted: #606061;
  --color-border: #e7e3db;
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-brand: #ff3a00;
  --color-on-brand: #000000;
  --color-accent: #4c9e76;
  --color-success: #2f7e54;
  --color-warning: #9c691c;
  --color-danger: #a3443e;
  --font-display: "Newsreader", ui-serif, Georgia, "Times New Roman", serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --text-display: 7.125rem;
  --text-display-line-height: 0.95;
  --text-display-weight: 400;
  --text-display-tracking: -0.039em;
  --text-h1: 4.8125rem;
  --text-h1-line-height: 0.98;
  --text-h1-weight: 400;
  --text-h1-tracking: -0.031em;
  --text-h2: 3.25rem;
  --text-h2-line-height: 1.01;
  --text-h2-weight: 400;
  --text-h2-tracking: -0.024em;
  --text-h3: 2.1875rem;
  --text-h3-line-height: 1.15;
  --text-h3-weight: 400;
  --text-h3-tracking: -0.016em;
  --text-lead: 1.5rem;
  --text-lead-line-height: 1.5;
  --text-lead-weight: 400;
  --text-lead-tracking: -0.005em;
  --text-body: 1rem;
  --text-body-line-height: 1.6;
  --text-body-weight: 400;
  --text-body-tracking: 0em;
  --text-small: 0.6875rem;
  --text-small-line-height: 1.5;
  --text-small-weight: 400;
  --text-small-tracking: 0.005em;
  --text-caption: 0.6875rem;
  --text-caption-line-height: 1.4;
  --text-caption-weight: 400;
  --text-caption-tracking: 0.01em;
  --text-label: 0.8125rem;
  --text-label-line-height: 1.3;
  --text-label-weight: 600;
  --text-label-tracking: 0.01em;
  --text-code: 0.875rem;
  --text-code-line-height: 1.55;
  --text-code-weight: 400;
  --text-code-tracking: 0em;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 32px;
  --space-6: 40px;
  --space-7: 64px;
  --space-8: 80px;
  --space-9: 120px;
  --space-10: 160px;
  --radius-none: 0px;
  --radius-sm: 4px;
  --radius-md: 7px;
  --radius-lg: 11px;
  --radius-xl: 18px;
  --radius-full: 9999px;
  --border-width: 1px;
  --shadow-sm: none;
  --shadow-md: none;
  --shadow-lg: none;
  --duration-fast: 110ms;
  --duration-base: 190ms;
  --duration-slow: 310ms;
  --ease-standard: cubic-bezier(0, 0, 0.2, 1);
  --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-exit: cubic-bezier(0.7, 0, 0.84, 0);
  --container: 1576px;
  --gutter: 24px;
  --button-radius: 7px;
  --button-padding: 10px 16px;
  --input-radius: 7px;
  --input-height: 48px;
  --card-radius: 8px;
  --card-padding: 24px;
  --badge-radius: 9999px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --color-background: #101016;
    --color-surface: #1c1c22;
    --color-surface-muted: #212127;
    --color-text: #eaeaf0;
    --color-text-muted: #97979d;
    --color-border: #3c3c42;
    --color-primary: #9e9e9e;
    --color-on-primary: #141210;
    --color-brand: #ff3a00;
    --color-on-brand: #141210;
    --color-accent: #6eb995;
    --color-success: #72ca9b;
    --color-warning: #e0a752;
    --color-danger: #cd7f7a;
  }
}

[data-theme="dark"] {
  color-scheme: dark;
  --color-background: #101016;
  --color-surface: #1c1c22;
  --color-surface-muted: #212127;
  --color-text: #eaeaf0;
  --color-text-muted: #97979d;
  --color-border: #3c3c42;
  --color-primary: #9e9e9e;
  --color-on-primary: #141210;
  --color-brand: #ff3a00;
  --color-on-brand: #141210;
  --color-accent: #6eb995;
  --color-success: #72ca9b;
  --color-warning: #e0a752;
  --color-danger: #cd7f7a;
}

@media (prefers-reduced-motion: reduce) {
  :root { --duration-fast: 0ms; --duration-base: 0ms; --duration-slow: 0ms; }
}
See every detail

Buttons

Inputs

Badges

New ActivePendingOverdue

Project

Quarterly field notes

Draft

A card groups one idea: a title, one line of support and a clear next step.

Updated 2h agoOpen project

Weekly digest is ready

Three new comments and one approval.

npm i @brandless/ui

01

Colour

Semantic roles for light mode. Contrast is checked against WCAG AA as you edit.

  • Background

  • Surface

  • Surface muted

  • AA 20.7:1

    Text

  • AA 6.2:1

    Text muted

  • Border

  • AA 20.7:1

    Primary

  • AA 21.0:1

    On primary

  • Brand

  • AA 5.9:1

    On brand

  • AA 3.2:1

    Accent

  • AA 4.9:1

    Success

  • AA 4.6:1

    Warning

  • AA 6.0:1

    Danger

02

Typography

Base 16px on a 1.482 modular scale. Only open-licence fonts are recommended.

display

Newsreader

Open alternative to Serrif

body

Inter

Open alternative to Saans

mono

Geist Mono

Open alternative to Saans Mono
  • display · 114px / 0.95 · 400 · -0.039em

    The quiet grammar of form

  • h1 · 77px / 0.98 · 400 · -0.031em

    The quiet grammar of form

  • h2 · 52px / 1.01 · 400 · -0.024em

    The quiet grammar of form

  • h3 · 35px / 1.15 · 400 · -0.016em

    The quiet grammar of form

  • lead · 24px / 1.5 · 400 · -0.005em

    Readable text sets the pace of an interface.

  • body · 16px / 1.6 · 400 · 0em

    Readable text sets the pace of an interface.

  • small · 11px / 1.5 · 400 · 0.005em

    Readable text sets the pace of an interface.

  • caption · 11px / 1.4 · 400 · 0.01em

    Readable text sets the pace of an interface.

  • label · 13px / 1.3 · 600 · 0.01em

    Readable text sets the pace of an interface.

  • code · 14px / 1.55 · 400 · 0em

    const tokens = await load();

03

Spacing

A 8px base unit. Use the scale for padding, gaps and section rhythm.

  • 4px
  • 8px
  • 12px
  • 16px
  • 32px
  • 40px
  • 64px
  • 80px
  • 120px
  • 160px

04

Shape & surface

Flat, paper-like planes separated by fine rules instead of elevation.

Radii

  • none

    0px

  • sm

    4px

  • md

    7px

  • lg

    11px

  • xl

    18px

  • full

    pill

Shadows & borders

shadow-sm

none

shadow-md

none

shadow-lg

none

Borders: 1px hairline · Surfaces: paper

06

Layout

1576px container · 12 columns · 24px gutters

Patterns

  • Wide single-column hero with generous vertical rhythm between sections.
  • Twelve-column grid; content blocks usually span 4, 6 or 8 columns.
  • Full-bleed bands for feature sections, inner content capped at the container.
  • Reading text limited to roughly 65–72 characters per line.

Responsive principles

  • Below md, grids collapse to a single column and side gutters drop to 16px.
  • Type steps above h2 scale down one step on small screens.
  • Navigation collapses to a disclosure menu below lg.
  • Touch targets stay at least 44×44px on every breakpoint.

07

Motion

Durations and easing curves. Previews respect your reduced-motion setting.

  • fast
    110ms
  • base
    190ms
  • slow
    310ms
  • ease-standard

  • ease-enter

  • ease-exit

Principles

  • Motion is measured and calm, easing into place rather than snapping.
  • Animate opacity and transform only; avoid animating layout.
  • Respect prefers-reduced-motion by replacing movement with instant state changes or fades.

Fin, its logo and trademarks belong to their owner and are shown only to say where this style comes from. This is our own study of their public website — not made or endorsed by Fin. Use your own words and images.

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