MozaikaDesign system

Clerk — Design System

light · modern · medium · tailwind · confidence 92% · deep decode

Clerk reads like a component library that grew a marketing site: a porcelain #F7F7F8 canvas dotted with blueprint grid marks, violet #6C47FF spent only on the primary CTA, and the product itself — live sign-in cards, user buttons, org switchers — doing the illustration work at real fidelity. Suisse Intl runs tight and small (13px body under a 64px/700 hero), eyebrow labels whisper in 13px caps, and long dark bento interludes flip the palette to show auth features as jewel cases. It feels engineered rather than art-directed — the design system selling itself by simply being rendered.

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/ds/clerk.

Tokens

Clerk's decoded design system: background #F7F7F8, text #131316, accent #6C47FF, link #6C47FF, primary #747686; type scale h1 64px / h2 32px / body 13px; 4px spacing base; 0px base radius. The single interactive/action color is #6C47FF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

RoleValue
bg#F7F7F8
surface#E9E9EA
border#D4D4D6
text#131316
text_muted#69696B
primary#747686
accent#6C47FF
link#6C47FF
secondary#5E5F6E
button_bg#6C47FF
button_text#FFFFFF

Using these colors

Typography

Spacing

Radii

Shadow

rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgb(108, 71, 255) 0px 0px 0px 0.5px, oklab(0.999994 0.0000455678 0.0000200868 / 0.07) 0px 1px 0px 0px inset, oklab(0.249859 0.00254738 -0.00901626 / 0.2) 0px 1px 3px 0px

Motion

Micro-interactions run at 500ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

Native design tokens

TokenValue
--color-purple-200#d7d4ff
--color-zinc-100lab(96.1634% .0993311 -.364041)
--typography-link#131316
--color-slate-200lab(91.7353% -.998765 -4.76968)
--color-sky-500#00aee3
--color-pink-500lab(56.9303% 76.8162 -8.07021)
--color-orange-600#ea520c
--color-red-900#7f1d1d
--typography-heavy#131316
--color-orange-800#9a2f12

…and 110 more measured on the page.

Button states (measured)

Layout (measured)

Motion choreography (measured)

Load order: svg.ml-2 → svg.ml-2 → svg.-ml-2.5 → svg.-ml-2.5 → div.w-full

Scroll reveal: 14 elements rest at opacity 0, translateY(-104px), animate in over 0.5s cubic-bezier(0.4, 0, 0.2, 1).

Overlay recipe (measured)

dialog panel: rgba(0, 0, 0, 0) · radius 0px · enter 300ms ease-out

Responsive (measured)

Per-section tokens (21)

Export: DESIGN.md

# Clerk — Design System

> light, modern, medium, tailwind — deep decode (measured live)

Clerk reads like a component library that grew a marketing site: a porcelain #F7F7F8 canvas dotted with blueprint grid marks, violet #6C47FF spent only on the primary CTA, and the product itself — live sign-in cards, user buttons, org switchers — doing the illustration work at real fidelity. Suisse Intl runs tight and small (13px body under a 64px/700 hero), eyebrow labels whisper in 13px caps, and long dark bento interludes flip the palette to show auth features as jewel cases. It feels engineered rather than art-directed — the design system selling itself by simply being rendered.

## Colors

| Role | Value |
|------|-------|
| bg | `#F7F7F8` |
| surface | `#E9E9EA` |
| border | `#D4D4D6` |
| text | `#131316` |
| text_muted | `#69696B` |
| primary | `#747686` |
| accent | `#6C47FF` |
| link | `#6C47FF` |
| secondary | `#5E5F6E` |
| button_bg | `#6C47FF` |
| button_text | `#FFFFFF` |

**Using these colors**

- **Action color** `#6C47FF` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `accent`, `link`, `button_bg` are all `#6C47FF` — one role, not several (your action color).
- **accent** `#6C47FF` — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
- **primary** `#747686` — a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #6C47FF).
- **secondary** `#5E5F6E` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.
- **Page coverage** (full-page screenshot pixels): `#FFFFFF` 89.8% · `#908F95` 10.2%

## Typography

- Heading: **Suisse Intl** _(free fallback: Newsreader)_
- Body: **Suisse Intl** _(free fallback: Newsreader)_
- Mono: **soehneMono** _(measured)_

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 64px / 700 · lh 72px · tracking -1.6px |
| h2 | 32px / 600 · lh 40px · tracking -0.48px |
| h3 | 22px / 600 · lh 28px |
| body | 13px / 500 · lh 18px |
| small | 12px / 500 · lh 18px |
| eyebrow | 12px / 600 · tracking 1.2px |

- Weight ladder: 400 · 450 · 500 · 600 · 700 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** Suisse Intl may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 4px (inferred from the measured scale)
- measured scale: 2px, 4px, 6px, 8px, 10px, 12px, 16px, 20px, 24px, 30px — snap all gaps/padding to these
- section rhythm: 128px top/bottom padding per section (measured)

## Radius
- base: 0px
- button: 6px
- card: 6px
- pill: 9999px
- sharp: 3px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#6C47FF` / `#FFFFFF` | none | 6px | 0px 12px 0px 12px | 500 13px | rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgb(108, 71, 255) 0px 0px 0px 0.5px, oklab(0.999994 0.0000455678 0.0000200868 / 0.07) 0px 1px 0px 0px inset, oklab(0.249859 0.00254738 -0.00901626 / 0.2) 0px 1px 3px 0px |
| secondary | `#FFFFFF` / `#131316` | none | 6px | 0px 10px 0px 10px | 500 13px | none |

**States (measured, not guessed)**

- primary focus: outline `2px solid rgb(19, 19, 22)`
- transition: `color 0.3s cubic-bezier(0.4, 0.36, 0, 1)`

## Motion
- durations: 500ms (dominant) · 300ms · 150ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `cubic-bezier(0.4, 0.36, 0, 1)`
- animated properties: border-color, color, background-color, text-decoration-color

Micro-interactions use the dominant duration + easing; nothing on the page animates slower than the longest duration above — don't invent springier motion.

## Their own tokens (verbatim from :root)

| Token | Value |
|-------|-------|
| `--color-purple-200` | `#d7d4ff` |
| `--color-zinc-100` | `lab(96.1634% .0993311 -.364041)` |
| `--typography-link` | `#131316` |
| `--color-slate-200` | `lab(91.7353% -.998765 -4.76968)` |
| `--color-sky-500` | `#00aee3` |
| `--color-pink-500` | `lab(56.9303% 76.8162 -8.07021)` |
| `--color-orange-600` | `#ea520c` |
| `--color-red-900` | `#7f1d1d` |
| `--typography-heavy` | `#131316` |
| `--color-orange-800` | `#9a2f12` |
| `--color-neutral-600` | `lab(34.924% 0 0)` |
| `--color-blue-700` | `#1d4ed8` |

_…and 108 more measured on the page._

Prefer these names when extending their system — it's the brand's actual vocabulary.

## Layout (measured)
- container max 1280px · common grid: 3-col
- nav: 42px sticky

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 26 | 598 | — | — | 192/128 | — |
| 753 | 1073 | — | — | 0/0 | — |
| 1826 | 1906 | 3 | — | 128/172 | 7/86/7 |
| 3732 | 893 | 3 | 8 | 128/0 | — |
| 4625 | 890 | 2 | 80 | 128/172 | 34/66 |

## Motion choreography (measured)
Load order: `svg.ml-2` @0ms → `svg.ml-2` @0ms → `svg.-ml-2.5` @0ms → `svg.-ml-2.5` @0ms → `div.w-full` @147ms
- `div.absolute` — transform translate3d(4rem, 2rem, 0px)→translate3d(3rem, 7rem, 0px) — 600ms cubic-bezier(0.22, 1, 0.36, 1)
- `div.w-full` — transform none→rotate(360deg) — 12000ms · loops
- `div.w-full` — transform rotate(-90deg)→rotate(45deg) — 4000ms ease-out · loops
- scroll reveal: 14 elements rest at opacity 0, translateY(-104px), animate in over 0.5s cubic-bezier(0.4, 0, 0.2, 1) (0 revealed during the drive).
- overlay dialog (auto-opened): panel rgba(0, 0, 0, 0) · r 0px
  - enter: opacity from 0 · 300ms ease-out | transform from scale(0.97) · 600ms linear(0 0%, 0.0175 1.694915254237288%, 0.0598 3.389830508474576%, 0.1156 5.084745762711864%, 0.1778 6.779661016949152%,

Rebuild the timeline, not just the durations — order, delays and staggers above are the choreography.

## Components (measured)
- link: #131316 · no underline
- disabled: bg rgba(0, 0, 0, 0) · text #131316

## Responsive (measured)
- mobile (390px): hero 32px · body 16px · nav: hamburger

## How to apply
Paste the Tailwind `@theme` (or CSS variables) as your base, then build each
section to its spec — verify every color, radius, and font against these tokens.
Hover/focus states, shadows and motion timings above are measured from the live page — match them exactly, don't re-guess them.

---

> **Decoded with Mozaika** — measured live, not guessed. Full decoded design system + one-command install: mozaika.design/ds/clerk

Export: Tailwind v4 (@theme)

@theme {
  /* action color #6C47FF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --color-bg: #F7F7F8;
  --color-surface: #E9E9EA;
  --color-border: #D4D4D6;
  --color-text: #131316;
  --color-text-muted: #69696B;
  --color-primary: #747686;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #6C47FF). */
  --color-accent: #6C47FF;  /* THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed. */
  --color-link: #6C47FF;  /* inline text links — shares the action color. */
  --color-secondary: #5E5F6E;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --color-button-bg: #6C47FF;  /* primary-button fill — the main call-to-action color. */
  --color-button-text: #FFFFFF;
  /* fonts: Suisse Intl may be proprietary — safe free fallback: Newsreader (Google Fonts). */
  --font-heading: "Suisse Intl", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Suisse Intl", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "soehneMono", ui-monospace, monospace;
  /* measured weights: 400, 450, 500, 600, 700 — use these, not 400/600 */
  --text-hero: 64px; --font-weight-hero: 700; --leading-hero: 72px; --tracking-hero: -1.6px;
  --text-h2: 32px; --font-weight-h2: 600; --leading-h2: 40px; --tracking-h2: -0.48px;
  --text-h3: 22px; --font-weight-h3: 600; --leading-h3: 28px;
  --text-body: 13px; --font-weight-body: 500; --leading-body: 18px;
  --text-small: 12px; --font-weight-small: 500; --leading-small: 18px;
  --text-eyebrow: 12px; --font-weight-eyebrow: 600; --tracking-eyebrow: 1.2px;
  --radius-base: 0px;
  --radius-button: 6px;
  --radius-card: 6px;
  --radius-pill: 9999px;
  --radius-sharp: 3px;
  --outline-focus: 2px solid rgb(19, 19, 22);  /* measured focus ring */
  --ease-brand: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;  /* use: duration-[var(--duration-fast)] */
  --duration-base: 300ms;
  --duration-slow: 500ms;
  --section-y: 128px;  /* per-section vertical padding (measured) */
  --spacing: 4px;  /* measured base — drives the p-*/gap-* scale. steps seen on the page: 2, 4, 6, 8, 10, 12, 16, 20, 24, 30px */
}

Export: CSS variables

:root {
  /* action color #6C47FF — the one interactive color; buttons/links/emphasis only, never large fills. */
  --bg: #F7F7F8;
  --surface: #E9E9EA;
  --border: #D4D4D6;
  --text: #131316;
  --text-muted: #69696B;
  --primary: #747686;  /* a neutral UI color (chips, tags, icon fills, chrome), not the action color (action = #6C47FF). */
  --accent: #6C47FF;  /* THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed. */
  --link: #6C47FF;  /* inline text links — shares the action color. */
  --secondary: #5E5F6E;  /* optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two. */
  --button-bg: #6C47FF;  /* primary-button fill — the main call-to-action color. */
  --button-text: #FFFFFF;
  --font-heading: "Suisse Intl", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: "Suisse Intl", "Newsreader", system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: "soehneMono", ui-monospace, monospace;
  --text-hero: 64px; --weight-hero: 700; --leading-hero: 72px; --tracking-hero: -1.6px;
  --text-h2: 32px; --weight-h2: 600; --leading-h2: 40px; --tracking-h2: -0.48px;
  --text-h3: 22px; --weight-h3: 600; --leading-h3: 28px;
  --text-body: 13px; --weight-body: 500; --leading-body: 18px;
  --text-small: 12px; --weight-small: 500; --leading-small: 18px;
  --text-eyebrow: 12px; --weight-eyebrow: 600; --tracking-eyebrow: 1.2px;
  --radius: 0px;
  --radius-button: 6px;
  --radius-card: 6px;
  --radius-pill: 9999px;
  --radius-sharp: 3px;
  --focus-ring: 2px solid rgb(19, 19, 22);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  --section-y: 128px;
}

/* their own tokens, verbatim from the site's :root */
:root {
  --color-purple-200: #d7d4ff;
  --color-zinc-100: lab(96.1634% .0993311 -.364041);
  --typography-link: #131316;
  --color-slate-200: lab(91.7353% -.998765 -4.76968);
  --color-sky-500: #00aee3;
  --color-pink-500: lab(56.9303% 76.8162 -8.07021);
  --color-orange-600: #ea520c;
  --color-red-900: #7f1d1d;
  --typography-heavy: #131316;
  --color-orange-800: #9a2f12;
  --color-neutral-600: lab(34.924% 0 0);
  --color-blue-700: #1d4ed8;
}
/* fonts: Suisse Intl may be proprietary — safe free fallback: Newsreader (Google Fonts). */