extracted · 34 artefacts
clerk.com
Live extraction of https://clerk.com — tokens, emitters, anatomy, icons, voice, motion, MCP server, AGENTS.md, prompt pack and a 13-chapter brand book. Generated with one command.
They surface 4 sections per brand (DESIGN.md · Tailwind · CSS · Tokens). designlang ships 34 artefacts for clerk.com and renders 12+ sections below.
---
site: "Clerk | Authentication and User Management"
url: "https://clerk.com"
generated_at: "2026-06-25T08:26:24.060Z"
generator: "designlang@13.0.0"
intent: landing
material: flat
library: tailwindcss
tokens:
colors:
primary: "#6c47ff"
secondary: "#1cc4ff"
accent: "#5de3ff"
background: "#f7f7f8"
foreground: "#000000"
typography:
sans: geistNumbers
mono: soehneMono
base: 13
spacing:
base: 2
scale: "[1, 46, 56, 76, 94, 128, 140, 151, 158, 167]"
radii:
xs: 2
sm: 5
md: 8
lg: 16
full: 38
shadows:
sm: "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"
---
# Overview
A **landing** page (heuristic confidence 0.29), dressed in **flat** material.
Component library appears to be **tailwindcss** (0.63).
> "More than authentication, Complete User Management"
The author writes in a **friendly** voice; headings tend to be **Title Case** case and **tight**.
Reading order detected on the source: `nav → nav → pricing-table → footer`.
Source: <https://clerk.com>.
# Colors
| role | hex | usage |
|---|---|---|
| primary | `#6c47ff` | 5 |
| secondary | `#1cc4ff` | 2 |
| accent | `#5de3ff` | 2 |
| background | `#f7f7f8` | — |
| foreground | `#000000` | — |
**Neutrals:** `#d9d9de` · `#000000` · `#ffffff` · `#131316` · `#747686`
**Total unique colors detected:** 21.
# Typography
**Families**
- `geistNumbers` · 3943 uses
- `soehneMono` · 51 uses
**Body size:** `13px` / line-height `24px`.
**Heading scale**
| level | size | weight | line-height |
|---|---|---|---|
| h1 | `64px` | `700` | `72px` |
| h2 | `17px` | `700` | `24px` |
| h3 | `16px` | `400` | `24px` |
| h4 | `14px` | `700` | `20px` |
# Layout
**Spacing base:** `2px` increments.
**Scale:** `1px` · `46px` · `56px` · `76px` · `94px` · `128px` · `140px` · `151px` · `158px` · `167px`
**Layout primitives:** 14 grid containers · 367 flex containers.
# Elevation and Depth
**Shadow scale**
- `sm` — `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(66, 67, 77) 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`
- `sm` — `rgba(255, 255, 255, 0.9) 0px 0px 0px 0.5px inset, rgba(19, 19, 22, 0.15) 0px 0px 0px 0.5px, rgba(0, 0, 0, 0.04) 0px 2px 3px 0px, rgba(34, 42, 53, 0.04) 0px 4px 6px 0px, rgba(0, 0, 0, 0.05) 0px 1px 1px 0px`
- `sm` — `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, rgba(0, 0, 0, 0) 0px 0px 0px 0px, oklab(0 0 0 / 0.08) 0px 2px 3px -1px, oklab(0.188081 0.0016512 -0.00579907 / 0.18) 0px 0px 0px 0.5px, oklab(0.999994 0.0000455678 0.0000200868 / 0.1) 0px 1px 0px 0px inset`
- `sm` — `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`
- `sm` — `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, rgba(0, 0, 0, 0) 0px 0px 0px 0px, oklab(0 0 0 / 0.08) 0px 2px 3px -1px, oklab(0.188081 0.0016512 -0.00579907 / 0.1) 0px 0px 0px 0.5px, oklab(0.999994 0.0000455678 0.0000200868 / 0.1) 0px 1px 0px 0px inset`
- `sm` — `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, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.05) 0px -9px 11px -10px, rgba(0, 0, 0, 0.05) 0px -0.25px 0px 0.25px`
**Z-index layers:** 12
# Shapes
**Radius scale**
- `xs` — `2px`
- `sm` — `5px`
- `md` — `8px`
- `lg` — `12px`
- `lg` — `16px`
- `full` — `38px`
# Components
**Detected patterns:** `buttons` · `cards` · `links` · `navigation` · `modals` · `badges`
**Anatomy**
| kind | variants | sizes | instances |
|---|---|---|---|
| button | solid, outline | md, xs, medium | 30 |
# Do's and Don'ts
**Do's**
- Use `secured`, `userprofile`, `organizationprofile` as the primary verbs in CTAs — these dominate the source.
- Write headings in **Title Case** case, **tight** length.
- Address the reader with the pronoun posture **you-only**.
- Stay inside the **flat** material — match shadow and radius habits.
**Don'ts**
- Don't 57 unique shadows — consider a 3-level elevation scale (sm/md/lg).
- Don't 96 !important rules — prefer specificity over overrides.
- Don't 6012 duplicate css declarations.
---
_Generated by [designlang](https://github.com/Manavarya09/design-extract) v13.0.0 from <https://clerk.com>._
_Compatible with the DESIGN.md convention pioneered by [design-extractor.com](https://www.design-extractor.com) — extended with intent, material, voice, anatomy, and library detection._
Typography
geistNumbersAgent prompt
One self-contained system prompt with every clerk.com token, anatomy slot and voice rule. Drop it into any AI agent and it builds in this brand without hallucinating.
# You are building UI in the clerk.com design system. Source: https://clerk.com Extracted by designlang on 2026-06-25. ## Brand at a glance - title Clerk | Authentication and User Management - page intent landing - material flat - design grade B ## Colour - primary #6c47ff - secondary #1cc4ff - accent #5de3ff - neutrals #d9d9de · #000000 · #ffffff · #131316 · #747686 · #5e5f6e ## Typography - families geistNumbers · soehneMono - weights 400 · 500 · 700 · 600 · 450 - base size 16px ## Spacing - scale 1px · 46px · 56px · 76px · 94px · 128px · 140px · 151px · 158px · 167px · 172px · 192px ## Radii - scale 2px · 5px · 8px · 12px · 16px · 38px ## Motion - durations 150ms · 200ms · 300ms · 450ms ## Voice - tone friendly - pronoun you-only - headings Title Case - CTA verbs secured · userprofile · organizationprofile · products · docs · changelog ## Component anatomy - button variants: [object Object] · [object Object] · [object Object] · slots: true · true · false ## Accessibility - WCAG score 100% · failing pairs: 0 ## Build rules 1. Use the colours above. **Never invent a new hex.** If you need a shade between two existing colours, derive it via HSL adjustment from the closest extracted colour and call out the derivation. 2. Use the extracted typography families. If you need a missing weight, pick the nearest available weight from the list and note it. 3. Snap spacing values to the scale above. No off-scale paddings or margins. 4. Snap border radii to the scale above. 5. Match the voice: same tone, same pronoun stance, same heading style. Reuse the listed CTA verbs. 6. Aim for WCAG AA contrast minimum. When the brand colours fail, prefer the foreground colour on the background colour rather than mid-tone neutrals. 7. Reuse component anatomy when it exists — do not invent novel structures for things the site already has. ## Available context files designlang wrote these alongside this prompt. Reach for them when you need ground truth: - `<host>-design-tokens.json` — DTCG primitive · semantic · composite tokens - `<host>-tailwind.config.js` — Tailwind v3 config - `<host>-tailwind-v4.css` — Tailwind v4 `@theme` block - `<host>-tokens.d.ts` — TypeScript literal-union types - `<host>-variables.css` — bare CSS custom properties - `<host>-reset.css` — brand-aware base styles - `<host>-gradients.css` — `.grad-N` utility classes - `<host>-anatomy.tsx` — typed React component scaffolds - `<host>-shadcn-theme.css` — shadcn/ui theme - `<host>-theme.js` — React / Vue / Svelte theme object - `<host>-mcp.json` — MCP server payload (load via stdio) - `<host>.brand.pdf` — print-ready 13-chapter brand book When you reference the system in code, prefer importing from these files over hard-coding values. ## Output expectations When asked to "build a pricing page" or "make a card" or any UI: - Produce a single self-contained component file in the appropriate framework (React / Vue / Svelte — match what the user is using). - Use Tailwind utility classes wired to the v4 `@theme` if Tailwind is available; otherwise use the CSS custom properties from `variables.css`. - Write the headline copy using the brand voice; do not invent generic Lorem. - Annotate any choice where you had to bend the system, with a one-line `// note:` comment explaining what and why. ## One-line install ```bash npx designlang clerk.com ``` Run this against any other URL to extract its system in the same shape as the one above. --- Generated by designlang. Re-extract by running `npx designlang clerk.com`.
MCP / Agent rules
The same payload the stdio MCP server hands to Claude Code, Cursor and Windsurf. Wire it into your editor and the agent answers brand-system questions with the actual extraction — not a guess.
npx designlang mcp --url https://clerk.com{
"colors": {
"all": [
{
"hex": "#d9d9de",
"rgb": {
"r": 217,
"g": 217,
"b": 222,
"a": 1
},
"hsl": {
"h": 240,
"s": 7,
"l": 86
},
"count": 4902,
"contexts": [
"border",
"text"
]
},
{
"hex": "#000000",
"rgb": {
"r": 0,
"g": 0,
"b": 0,
"a": 1
},
"hsl": {
"h": 0,
"s": 0,
"l": 0
},
"count": 4526,
"contexts": [
"text",
"border",
"background"
]
},
{
"hex": "#ffffff",
"rgb": {
"r": 255,
"g": 255,
"b": 255,
"a": 1
},
"hsl": {
"h": 0,
"s": 0,
"l": 100
},
"count": 176,
"contexts": [
"background",
"text",
"border"
]
},
{
"hex": "#131316",
"rgb": {
"r": 19,
"g": 19,
"b": 22,
"a": 0.15
},
"hsl": {
"h": 240,
"s": 7,
"l": 8
},
"count": 164,
"contexts": [
"background",
"text"
]
},
{
"hex": "#747686",
"rgb": {
"r": 116,
"g": 118,
"b": 134,
"a": 1
},
"hsl": {
"h": 233,
"s": 7,
"l": 49
},
"count": 137,
"contexts": [
"text",
"background"
]
},
{
"hex": "#5e5f6e",
"rgb": {
"r": 94,
"g": 95,
"b": 110,
"a": 1
},
"hsl": {
"h": 236,
"s": 8,
"l": 40
},
"count": 79,
"contexts": [
"text",
"background",
"border"
]
},
{
"hex": "#2f3037",
"rgb": {
"r": 47,
"g": 48,
"b": 55,
"a": 1
},
"hsl": {
"h": 233,
"s": 8,
"l": 20
},
"count": 39,
"contexts": [
"background",
"text"
]
},
{
"hex": "#9394a1",
"rgb": {
"r": 147,
"g": 148,
"b": 161,
"a": 1
},
"hsl": {
"h": 236,
"s": 7,
"l": 60
},
"count": 38,
"contexts": [
"text"
]
},
{
"hex": "#696a78",
"rgb": {
"r": 105,
"g": 106,
"b": 120,
"a": 1
},
"hsl": {
"h": 236,
"s": 7,
"l": 44
},
"count": 27,
"contexts": [
"text"
]
},
{
"hex": "#eeeef0",
"rgb": {
"r": 238,
"g": 238,
"b": 240,
"a": 1
},
"hsl": {
"h": 240,
"s": 6,
"l": 94
},
"count": 26,
"contexts": [
"background",
"border"
]
},
{
"hex": "#212126",
"rgb": {
"r": 33,
"g": 33,
"b": 38,
"a": 1
},
"hsl": {
"h": 240,
"s": 7,
"l": 14
},
"count": 21,
"contexts": [
"text",
"background"
]
},
{
"hex": "#42434d",
"rgb": {
"r": 66,
"g": 67,
"b": 77,
"a": 1
},
"hsl": {
"h": 235,
"s": 8,
"l": 28
},
"count": 12,
"contexts": [
"background",
"text"
]
},
{
"hex": "#b7b8c2",
"rgb": {
"r": 183,
"g": 184,
"b": 194,
"a": 1
},
"hsl": {
"h": 235,
"s": 8,
"l": 74
},
"count": 8,
"contexts": [
"text"
]
},
{
"hex": "#ef4444",
"rgb": {
"r": 239,
"g": 68,
"b": 68,
"a": 1
},
"hsl": {
"h": 0,
"s": 84,
"l": 60
},
"count": 6,
"contexts": [
"text",
"background"
]
},
{
"hex": "#6c47ff",
"rgb": {
"r": 108,
"g": 71,
"b": 255,
"a": 1
},
"hsl": {
"h": 252,
"s": 100,
"l": 64
},
"count": 5,
"contexts": [
"background",
"text"
]
},
{
"hex": "#1cc4ff",
"rgb": {
"r": 28,
"g": 196,
"b": 255,
"a": 0.2
},
"hsl": {
"h": 196,
"s": 100,
"l": 55
},
"count": 2,
"contexts": [
"background"
]
},
{
"hex": "#5de3ff",
"rgb": {
"r": 93,
"g": 227,
"b": 255,
"a": 1
},
"hsl": {
"h": 190,
"s": 100,
"l": 68
},
"count": 2,
"contexts": [
"text",
"background"
]
},
{
"hex": "#9785ff",
"rgb": {
"r": 151,
"g": 133,
"b": 255,
"a": 1
},
"hsl": {
"h": 249,
"s": 100,
"l": 76
},
"count": 1,
"contexts": [
"text"
]
},
{
"hex": "#4a4c5b",
"rgb": {
"r": 74,
"g": 76,
"b": 91,
"a": 0.1
},
"hsl": {
"h": 233,
"s": 10,
"l": 32
},
"count": 1,
"contexts": [
"background"
]
},
{
"hex": "#0ba8fa",
"rgb": {
"r": 11,
"g": 168,
"b": 250,
"a": 0.05
},
"hsl": {
"h": 201,
"s": 96,
"l": 51
},
"count": 1,
"contexts": [
"background"
]
},
{
"hex": "#3ad4fd",
"rgb": {
"r": 58,
"g": 212,
"b": 253,
"a": 1
},
"hsl": {
"h": 193,
"s": 98,
"l": 61
},
"count": 1,
"contexts": [
"border"
]
}
]
},
"regions": [
{
"role": "nav",
"tag": "header",
"bounds": {
"x": 0,
"y": 48,
"w": 1280,
"h": 42
},
"heading": null,
"buttonCount": 6,
"cardCount": 27,
"className": "sticky top-2 isolate mt-(--header-mt-mobile,var(--header-mt,0)) h-fit w-full md:mt-(--header-mt,0)! light"
},
{
"role": "nav",
"tag": "nav",
"bounds": {
"x": 125.5,
"y": 59.046875,
"w": 389.390625,
"h": 19.890625
},
"heading": null,
"buttonCount": 4,
"cardCount": 19,
"className": "ml-3 hidden md:block"
},
{
"role": "pricing",
"tag": "main",
"bounds": {
"x": 0,
"y": 90,
"w": 1280,
"h": 7000.796875
},
"heading": "More than authentication, Complete User Management",
"buttonCount": 23,
"cardCount": 362,
"className": null
},
{
"role": "footer",
"tag": "footer",
"bounds": {
"x": 0,
"y": 7218.796875,
"w": 1280,
"h": 397
},
"heading": null,
"buttonCount": 1,
"cardCount": 38,
"className": "[:where(&)]:mt-24 sm:[:where(&)]:mt-32 light"
}
],
"componentClusters": [
{
"kind": "button",
"structuralHash": "button>span",
"instanceCount": 5,
"variants": [
{
"css": {
"background": "rgba(0, 0, 0, 0)",
"color": "rgb(19, 19, 22)",
"padding": "0px 8px 0px 0px",
"borderRadius": "0px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "16px",
"fontWeight": "400"
},
"instanceCount": 5
}
]
},
{
"kind": "button",
"structuralHash": "button>span>svg",
"instanceCount": 5,
"variants": [
{
"css": {
"background": "rgb(255, 255, 255)",
"color": "rgb(19, 19, 22)",
"padding": "0px 12px 0px 12px",
"borderRadius": "6px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "13px",
"fontWeight": "500"
},
"instanceCount": 1
},
{
"css": {
"background": "rgba(0, 0, 0, 0)",
"color": "rgb(19, 19, 22)",
"padding": "16px 0px 8px 0px",
"borderRadius": "0px",
"border": "1px 0px 0px solid oklab(0.188081 0.0016512 -0.00579907 / 0.05)",
"fontSize": "12px",
"fontWeight": "600"
},
"instanceCount": 3
},
{
"css": {
"background": "rgb(33, 33, 38)",
"color": "rgb(0, 0, 0)",
"padding": "0px 0px 0px 0px",
"borderRadius": "3.35544e+07px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "16px",
"fontWeight": "400"
},
"instanceCount": 1
}
]
},
{
"kind": "button",
"structuralHash": "button",
"instanceCount": 11,
"variants": [
{
"css": {
"background": "rgba(0, 0, 0, 0)",
"color": "rgb(108, 71, 255)",
"padding": "6px 0px 6px 0px",
"borderRadius": "0px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "12px",
"fontWeight": "600"
},
"instanceCount": 1
},
{
"css": {
"background": "rgba(0, 0, 0, 0)",
"color": "rgb(19, 19, 22)",
"padding": "6px 0px 6px 0px",
"borderRadius": "0px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "12px",
"fontWeight": "600"
},
"instanceCount": 10
}
]
},
{
"kind": "button",
"structuralHash": "button>span>span>span",
"instanceCount": 2,
"variants": [
{
"css": {
"background": "rgba(0, 0, 0, 0)",
"color": "rgb(19, 19, 22)",
"padding": "6px 0px 6px 0px",
"borderRadius": "0px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "12px",
"fontWeight": "600"
},
"instanceCount": 2
}
]
},
{
"kind": "button",
"structuralHash": "div>span>svg",
"instanceCount": 7,
"variants": [
{
"css": {
"background": "rgba(0, 0, 0, 0)",
"color": "rgb(116, 118, 134)",
"padding": "0px 0px 0px 0px",
"borderRadius": "0px",
"border": "0px solid rgb(217, 217, 222)",
"fontSize": "12px",
"fontWeight": "500"
},
"instanceCount": 7
}
]
}
],
"accessibility": {
"remediation": []
},
"cssHealth": {
"sheets": [
{
"url": "https://clerk.com/_next/static/chunks/0bzo.a~lxpdy3.css?dpl=dpl_9uKEv2KtAetxMqBoqp9UeYL6QQCL",
"totalBytes": 4181,
"usedBytes": 246,
"unusedBytes": 3935,
"unusedPercent": 94
},
{
"url": "https://clerk.com/",
"totalBytes": 301,
"usedBytes": 0,
"unusedBytes": 301,
"unusedPercent": 100
},
{
"url": "https://clerk.com/",
"totalBytes": 27,
"usedBytes": 27,
"unusedBytes": 0,
"unusedPercent": 0
},
{
"url": "https://clerk.com/_next/static/chunks/0d0if05yqb5jw.css?dpl=dpl_9uKEv2KtAetxMqBoqp9UeYL6QQCL",
"totalBytes": 829106,
"usedBytes": 811261,
"unusedBytes": 17845,
"unusedPercent": 2
},
{
"url": "https://clerk.com/_next/static/chunks/024ttb8wtppd_.css?dpl=dpl_9uKEv2KtAetxMqBoqp9UeYL6QQCL",
"totalBytes": 2332,
"usedBytes": 93,
"unusedBytes": 2239,
"unusedPercent": 96
}
],
"totalBytes": 835947,
"usedBytes": 811627,
"unusedBytes": 24320,
"unusedPercent": 3,
"importantCount": 96,
"duplicates": 6012,
"vendorPrefixes": {
"webkit": 316,
"moz": 4,
"ms": 0,
"o": 0
},
"keyframes": [],
"specificity": {
"max": [
1,
9,
6
],
"average": [
0.03,
1.35,
0.15
],
"count": 14017
},
"issues": [
"96 !important rules",
"6012 duplicate declarations"
]
}
}All artefacts
Every file designlang produced for clerk.com — 34 in total. Download anything.
Run designlang on your own URL.
Same 34-artefact depth as the clerk.com extraction above. No signup, no API key.
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