humanlayer.json
HumanLayer Brand Identity
A complete profile of HumanLayer's visual system — colors, typography, components, and personality — extracted from https://humanlayer.dev. Built for designers, agents, and AI tools.
- Page: https://characterquilt.com/branding/humanlayer
- Machine-readable JSON: https://characterquilt.com/branding/humanlayer.json
- Per-page llms.txt: https://characterquilt.com/branding/humanlayer/llms.txt
Quick Facts
| Field | Value |
|---|---|
| Primary | #FD5799 |
| Accent | #FD5799 |
| Body Font | IBM Plex Mono |
| Heading Font | IBM Plex Mono |
Color Palette
- primary: #FD5799
- secondary: #9CA3AF
- accent: #FD5799
- background: #181818
- textPrimary: #181818
- link: #3B82F6
Typography
- primary: IBM Plex Mono — https://fonts.google.com/specimen/IBM+Plex+Mono
- heading: IBM Plex Mono — https://fonts.google.com/specimen/IBM+Plex+Mono
Visual Assets
- Favicon: https://www.humanlayer.dev/favicon.ico?favicon.b590251f.ico
- Social card (og:image): https://humanlayer.dev/images/og-humanlayer-code-fd.png
UI Components
- input: background=#222222, textColor=#EEEEEE, borderColor=#FD5799, borderRadius=0px, shadow=rgb(255, 255, 255) 0px 0px 0px 0px, rgba(59, 130, 246, 0.5) 0px 0px 0px 2px, rgba(0, 0, 0, 0) 0px 0px 0px 0px
- buttonPrimary: background=#FD5799, textColor=#181818, borderColor=#FD5799, borderRadius=0px, shadow=none
- buttonSecondary: background=transparent, textColor=#EEEEEE, borderColor=#333333, borderRadius=0px, shadow=none
Brand Personality
Tone: modern · Energy: medium · Audience: developers and tech enthusiasts
HumanLayer Brand in the Wild
Real-world brand assets — ads, campaigns, marketing materials.
- 12 Factor Agents | HumanLayer Blog
- Writing a good CLAUDE.md | HumanLayer Blog
- 12 Factor Agents | HumanLayer Blog
- A Brief History of Ralph | HumanLayer Blog
- Advanced Context Engineering for Coding Agents | HumanLayer Blog
- A Brief History of Ralph | HumanLayer Blog
Working with these fonts
Not found on Google Fonts? Here are some instructions that may help:
- Open the company's homepage in a browser with DevTools open.
- In the Network tab, filter by "Font" (or by extensions: woff2, woff, ttf, otf).
- Hard-reload the page and click around (pricing, blog, careers) — some weights only load on specific routes.
- For each captured font URL: right-click → Save As to download the file locally.
- View the page's CSS (DevTools → Sources, or curl the stylesheet URLs) and copy out the matching @font-face declarations. Rewrite each
src: url(...)to point to your local file path.
Only do this if you have permission to use the brand assets — most proprietary fonts are licensed and may not be redistributable.
Machine-Readable Profile
{
"colorScheme": "dark",
"fonts": [
{
"family": "IBM Plex Mono",
"role": "monospace"
}
],
"colors": {
"primary": "#FD5799",
"secondary": "#9CA3AF",
"accent": "#FD5799",
"background": "#181818",
"textPrimary": "#181818",
"link": "#3B82F6"
},
"typography": {
"fontFamilies": {
"primary": "IBM Plex Mono",
"heading": "IBM Plex Mono"
},
"fontStacks": {
"heading": [
"IBM Plex Mono"
],
"body": [
"ui-sans-serif",
"system-ui",
"sans-serif",
"Apple Color Emoji",
"Segoe UI Emoji",
"Segoe UI Symbol",
"Noto Color Emoji"
],
"paragraph": [
"IBM Plex Mono"
]
},
"fontSizes": {
"h1": "32px",
"h2": "16px",
"body": "14.4px"
}
},
"spacing": {
"baseUnit": 4,
"borderRadius": "0px"
},
"components": {
"input": {
"background": "#222222",
"textColor": "#EEEEEE",
"borderColor": "#FD5799",
"borderRadius": "0px",
"borderRadiusCorners": {
"topLeft": "0px",
"topRight": "0px",
"bottomRight": "0px",
"bottomLeft": "0px"
},
"shadow": "rgb(255, 255, 255) 0px 0px 0px 0px, rgba(59, 130, 246, 0.5) 0px 0px 0px 2px, rgba(0, 0, 0, 0) 0px 0px 0px 0px"
},
"buttonPrimary": {
"background": "#FD5799",
"textColor": "#181818",
"borderColor": "#FD5799",
"borderRadius": "0px",
"borderRadiusCorners": {
"topLeft": "0px",
"topRight": "0px",
"bottomRight": "0px",
"bottomLeft": "0px"
},
"shadow": "none"
},
"buttonSecondary": {
"background": "transparent",
"textColor": "#EEEEEE",
"borderColor": "#333333",
"borderRadius": "0px",
"borderRadiusCorners": {
"topLeft": "0px",
"topRight": "0px",
"bottomRight": "0px",
"bottomLeft": "0px"
},
"shadow": "none"
}
},
"images": {
"favicon": "https://www.humanlayer.dev/favicon.ico?favicon.b590251f.ico",
"ogImage": "https://humanlayer.dev/images/og-humanlayer-code-fd.png"
},
"__llm_logo_reasoning": {
"selectedIndex": -1,
"reasoning": "The only candidate is a tiny icon-sized SVG, which is not suitable as a primary brand logo. No visible, medium/large logo representing 'HumanLayer' was found in the header.",
"confidence": 0.3,
"rejected": true,
"source": "llm"
},
"__llm_button_reasoning": {
"primary": {
"index": 0,
"text": "Join the Waitlist",
"reasoning": "Button #0 'Join the Waitlist' uses the vibrant brand color #FD5799, making it the most prominent call-to-action on the page."
},
"secondary": {
"index": 2,
"text": "Previous",
"reasoning": "Button #2 'Previous' has a transparent background, distinguishing it from the primary button's vibrant color, making it suitable as a secondary action."
},
"confidence": 0.95
},
"personality": {
"tone": "modern",
"energy": "medium",
"targetAudience": "developers and tech enthusiasts"
},
"designSystem": {
"framework": "tailwind",
"componentLibrary": ""
},
"confidence": {
"buttons": 0.95,
"colors": 0.9,
"overall": 0.925
},
"__llm_metadata": {
"logoSelection": {
"llmCalled": true,
"llmSucceeded": true,
"finalSource": "llm",
"rawLogoSelection": {
"selectedLogoIndex": -1,
"selectedLogoReasoning": "The only candidate is a tiny icon-sized SVG, which is not suitable as a primary brand logo. No visible, medium/large logo representing 'HumanLayer' was found in the header.",
"confidence": 0.3
}
},
"buttonClassification": {
"llmCalled": true,
"llmSucceeded": true
}
}
}