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Perk

Business travel booking and company spend in a single tool

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Visit site (opens perk.com in a new tab)Use this style

The style

A friendly, confident finance language. A warm off-white canvas, near-black ink and a single electric lime that marks every main action. Rounded medium-weight headlines are set tight, cards are soft and generously rounded, and small uppercase labels give each feature a clear, tidy heading.

Colours

  • Brand#d1ff50
  • Buttons#10100d
  • Background#f5f5ed
  • Text#14140f

Click a colour to copy it.

Fonts

Plus Jakarta Sans

For headings

Plus Jakarta Sans

For everything else

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

Buttons

Get startedContinueCancel

40px pills: lime (#BEFF50) with a dark label for the main action, a 1px dark outline pill for the second, both with a small chevron.

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 Perk’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.

/* Lime Voyage — design tokens generated by Markdown */
/* Derived from an analysis of perk.com; 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: #f5f5ed;
  --color-surface: #ffffff;
  --color-surface-muted: #eaeae2;
  --color-text: #14140f;
  --color-text-muted: #6a6a63;
  --color-border: #d2d2c8;
  --color-primary: #10100d;
  --color-on-primary: #ffffff;
  --color-brand: #d1ff50;
  --color-on-brand: #14140f;
  --color-accent: #537fac;
  --color-success: #2f7e54;
  --color-warning: #93631a;
  --color-danger: #a3443e;
  --font-display: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --text-display: 3.875rem;
  --text-display-line-height: 0.95;
  --text-display-weight: 500;
  --text-display-tracking: -0.026em;
  --text-h1: 2.9375rem;
  --text-h1-line-height: 0.98;
  --text-h1-weight: 500;
  --text-h1-tracking: -0.021em;
  --text-h2: 2.25rem;
  --text-h2-line-height: 1.01;
  --text-h2-weight: 500;
  --text-h2-tracking: -0.016em;
  --text-h3: 1.75rem;
  --text-h3-line-height: 1.15;
  --text-h3-weight: 500;
  --text-h3-tracking: -0.01em;
  --text-lead: 1.3125rem;
  --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: 0.75rem;
  --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: 0.08em;
  --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: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;
  --radius-none: 0px;
  --radius-sm: 11px;
  --radius-md: 22px;
  --radius-lg: 33px;
  --radius-xl: 55px;
  --radius-full: 9999px;
  --border-width: 1px;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 12px -2px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 18px 40px -12px rgb(0 0 0 / 0.18);
  --duration-fast: 110ms;
  --duration-base: 190ms;
  --duration-slow: 310ms;
  --ease-standard: cubic-bezier(0.4, 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: 1280px;
  --gutter: 24px;
  --button-radius: 9999px;
  --button-padding: 8px 16px;
  --input-radius: 12px;
  --input-height: 48px;
  --card-radius: 28px;
  --card-padding: 24px;
  --badge-radius: 9999px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --color-background: #161610;
    --color-surface: #22221c;
    --color-surface-muted: #272721;
    --color-text: #f0f0ea;
    --color-text-muted: #9d9d97;
    --color-border: #42423c;
    --color-primary: #a8a894;
    --color-on-primary: #141210;
    --color-brand: #d1ff50;
    --color-on-brand: #141210;
    --color-accent: #7c9ec0;
    --color-success: #72ca9b;
    --color-warning: #e0a752;
    --color-danger: #cd7f7a;
  }
}

[data-theme="dark"] {
  color-scheme: dark;
  --color-background: #161610;
  --color-surface: #22221c;
  --color-surface-muted: #272721;
  --color-text: #f0f0ea;
  --color-text-muted: #9d9d97;
  --color-border: #42423c;
  --color-primary: #a8a894;
  --color-on-primary: #141210;
  --color-brand: #d1ff50;
  --color-on-brand: #141210;
  --color-accent: #7c9ec0;
  --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 16.9:1

    Text

  • AA 5.0:1

    Text muted

  • Border

  • AA 17.4:1

    Primary

  • AA 19.1:1

    On primary

  • Brand

  • AA 16.0:1

    On brand

  • AA 3.8:1

    Accent

  • AA 4.5:1

    Success

  • AA 4.7:1

    Warning

  • AA 5.5:1

    Danger

02

Typography

Base 16px on a 1.312 modular scale. Only open-licence fonts are recommended.

display

Plus Jakarta Sans

Open alternative to OTSono

body

Plus Jakarta Sans

Open alternative to OTSono

mono

Space Mono

Suggested
  • display · 62px / 0.95 · 500 · -0.026em

    The quiet grammar of form

  • h1 · 47px / 0.98 · 500 · -0.021em

    The quiet grammar of form

  • h2 · 36px / 1.01 · 500 · -0.016em

    The quiet grammar of form

  • h3 · 28px / 1.15 · 500 · -0.01em

    The quiet grammar of form

  • lead · 21px / 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 · 12px / 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 · 0.08em

    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
  • 24px
  • 32px
  • 48px
  • 64px
  • 96px
  • 128px

04

Shape & surface

Mostly flat surfaces with a light shadow reserved for raised, interactive elements.

Radii

  • none

    0px

  • sm

    11px

  • md

    22px

  • lg

    33px

  • xl

    55px

  • full

    pill

Shadows & borders

shadow-sm

0 1px 2px rgb(0 0 0 / 0.05)

shadow-md

0 4px 12px -2px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.04)

shadow-lg

0 18px 40px -12px rgb(0 0 0 / 0.18)

Borders: 1px hairline · Surfaces: flat

06

Layout

1280px container · 12 columns · 24px gutters

Patterns

  • Split hero: message left, supporting visual or product frame right.
  • 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.

Perk, 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 Perk. Use your own words and images.

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