54 real-world design systems (Stripe, Linear, Vercel, Supabase, Apple, Notion, Cursor, etc.) as ready-to-use HTML/CSS reference. Exact color palettes, typography hierarchies, component specs, spacing, shadow systems, and font substitutions. Use when building UI that should match a specific company's aesthetic.
Resources
1Install
npx skillscat add saajunaid/caddis-plugin/popular-web-designs Install via the SkillsCat registry.
Popular Web Designs
54 real-world design systems captured as HTML/CSS references. Each entry maps to a company's complete visual language — colors, typography, components, spacing, shadows, and responsive rules.
How to Use
- Identify the target brand from the catalog below or from the user's description
- Load the detailed template by reading
templates/<brand>.mdin this skill directory - Extract design tokens and apply to your HTML
- Use the Agent Prompt Guide in each template for exact CSS values
Font Substitution (Proprietary → Google Fonts CDN)
| Proprietary Font | CDN Substitute |
|---|---|
| sohne-var (Stripe) | Source Sans 3 |
| Geist Sans (Vercel) | Geist (on Google Fonts) |
| Inter Variable (Linear) | Inter |
| Berkeley Mono (Linear code) | JetBrains Mono |
| SF Pro Display (Apple) | Inter |
| Circular (Spotify, Airbnb) | DM Sans |
| Söhne (Notion) | Inter |
Design Selection Guide
Dark UI / dashboards: Linear, Cursor, ElevenLabs, Warp, xAI, Ollama
Marketing / landing pages: Stripe, Framer, Apple, SpaceX
Developer tools: Vercel, Supabase, Raycast, Sentry, PostHog
Content-first / docs: Mintlify, Notion, Sanity, MongoDB
Terminal / minimal: Ollama, xAI, VoltAgent, Resend
Fintech / trust: Stripe, Revolut, Wise, Coinbase
Enterprise / corporate: IBM, Intercom, Zapier, Airtable
Brand Catalog
Full detailed templates (color systems, typography tables, component specs, agent prompts) are in
templates/. Quick reference below.
AI & Machine Learning
| Brand | Aesthetic | Primary Color | Font |
|---|---|---|---|
| Claude | Warm cream, editorial | #D97706 amber |
Georgia + Inter |
| Cohere | Navy + coral | #FF6B6B |
Inter |
| ElevenLabs | Near-black + purple | #7C3AED |
Inter |
| Minimax | Dark + blue | #3B82F6 |
Inter |
| Mistral AI | Dark navy + gradient | #FF7849 orange |
Inter |
| Ollama | Terminal black | #22C55E green |
JetBrains Mono |
| OpenCode AI | Terminal dark | #4ADE80 |
JetBrains Mono |
| Replicate | Pure black minimal | #FFFFFF |
Geist |
| RunwayML | Black + green accent | #00E599 |
Inter |
| Together AI | Dark + blue | #3B82F6 |
Inter |
| VoltAgent | Dark + teal | #14B8A6 |
JetBrains Mono |
| xAI (Grok) | Pure black + white | #FFFFFF |
JetBrains Mono |
Developer Tools & Platforms
| Brand | Aesthetic | Primary Color | Font |
|---|---|---|---|
| Cursor | VSCode dark + blue | #3B82F6 |
Inter |
| Expo | Black + blue | #4630EB |
Inter |
| Linear | Near-black + indigo | #5E6AD2 |
Inter Variable |
| Lovable | White + purple gradient | #7C3AED |
Inter |
| Mintlify | White + purple | #7C3AED |
Inter |
| PostHog | Dark + yellow-orange | #F97316 |
Inter |
| Raycast | Dark + orange | #FF6363 |
Inter |
| Resend | Pure black minimal | #FFFFFF |
Geist |
| Sentry | Dark + green | #362D59 + #F55459 |
Rubik |
| Supabase | Dark + emerald | #3ECF8E |
Inter |
| Superhuman | White + dark navy | #1D1D1D |
-apple-system |
| Vercel | White+black, no-color | #171717 |
Geist |
| Warp | Dark + gradient | #5B53FF |
Inter |
| Zapier | White + orange | #FF4A00 |
Inter |
Infrastructure & Cloud
| Brand | Aesthetic | Primary Color | Font |
|---|---|---|---|
| ClickHouse | Dark + yellow | #FAFF69 |
Inter |
| Composio | Dark + purple | #7C3AED |
Inter |
| HashiCorp | Dark + purple | #844FBA |
Inter |
| MongoDB | White + green | #00ED64 |
Euclid |
| Sanity | White + red | #F03E2F |
Inter |
| Stripe | White + purple | #533AFD |
sohne-var→Source Sans 3 |
Design & Productivity
| Brand | Aesthetic | Primary Color | Font |
|---|---|---|---|
| Airtable | White + blue | #2D7FF9 |
Inter |
| Cal.com | White + black minimal | #111827 |
Cal Sans |
| Clay | Dark + gradient | #6366F1 |
Inter |
| Figma | White + purple gradient | #7C3AED |
Inter |
| Framer | Dark + gradient | #0A0A0A |
Inter |
| Intercom | Navy + white | #1F8EFA |
Inter |
| Miro | Yellow + white | #FFD02F |
Inter |
| Notion | White + minimal | #37352F |
ui-sans-serif |
| White + red | #E60023 |
Helvetica Neue | |
| Webflow | Dark + blue | #4353FF |
Inter |
Fintech & Crypto
| Brand | Aesthetic | Primary Color | Font |
|---|---|---|---|
| Coinbase | White + blue | #0052FF |
Coinbase Display |
| Kraken | Dark + purple | #5741D9 |
Inter |
| Revolut | White + dark navy | #191C1F |
Inter |
| Wise | White + teal-green | #163300 + #9FE870 |
Inter |
Enterprise & Consumer
| Brand | Aesthetic | Primary Color | Font |
|---|---|---|---|
| Airbnb | White + red-coral | #FF5A5F |
Cereal→DM Sans |
| Apple | White + black minimal | #0071E3 |
SF Pro→Inter |
| BMW | Dark + blue-silver | #1C69D4 |
BMWTypeNext |
| IBM | White + blue | #0F62FE |
IBM Plex |
| NVIDIA | Black + green | #76B900 |
NVIDIA Sans |
| SpaceX | Black + minimal | #FFFFFF |
Inter |
| Spotify | Black + green | #1DB954 |
Circular→DM Sans |
| Uber | Black minimal | #000000 |
Uber Move→Inter |
Detailed Templates Available
Full design specifications (color system, typography table, component specs, responsive rules, agent prompt guide) available for:
templates/linear.app.md— Linear (complete)templates/stripe.md— Stripe (complete)templates/vercel.md— Vercel (complete)
Additional templates can be added to templates/ as needed. When a template doesn't exist, use the quick reference row above combined with knowledge of the brand's established design language.
Recommended Pairings
- Pair with
sketchfor exploring which brand reference fits the brief - Pair with
design-mdwhen deliverable is a formal spec file - Pair with
warm-editorial-uifor your organization's internal app family (already has a complete custom system) - Pair with
claude-designprinciples (anti-slop quality standards) when building any HTML artifact