lucis.json
Lucis Brand Identity
A complete profile of Lucis's visual system — colors, typography, components, and personality — extracted from https://www.lucis.life. Built for designers, agents, and AI tools.
- Page: https://characterquilt.com/branding/lucis
- Machine-readable JSON: https://characterquilt.com/branding/lucis.json
- Per-page llms.txt: https://characterquilt.com/branding/lucis/llms.txt
Quick Facts
| Field | Value |
|---|---|
| Primary | #000000 |
| Accent | #000000 |
| Body Font | rationalText |
| Heading Font | abcDiatype |
Color Palette
- primary: #000000
- secondary: #272D2B
- accent: #000000
- background: #272D2B
- textPrimary: #272D2B
- link: #000000
Typography
- primary: rationalText — https://fonts.google.com/specimen/rationalText
- heading: abcDiatype — https://fonts.google.com/specimen/abcDiatype
Visual Assets
- Logo: https://www.lucis.life/_next/static/media/lucis-with-text.c4a7d160.svg?dpl=dpl_5reHZ2PZHMoYHGDyG3gC2FvKWHAS
- Favicon: https://www.lucis.life/favicons/favicon.png
- Social card (og:image): https://www.lucis.life/assets/seo/lucis-opengraph-en.png
UI Components
- buttonPrimary: background=#000000, textColor=#FFFFFF, borderRadius=33554400px, 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, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.12) 0px 4px 4px -2px, rgba(0, 0, 0, 0.04) 0px 12px 16px 4px, rgba(0, 0, 0, 0.08) 0px 8px 32px 0px
- buttonSecondary: background=transparent, textColor=#272D2B, borderColor=#1F2422, borderRadius=33554400px, shadow=none
Brand Personality
Tone: professional · Energy: medium · Audience: health-conscious individuals
Lucis Brand in the Wild
Real-world brand assets — ads, campaigns, marketing materials.
- Bryan Johnson's Nutty Pudding
- Insights & resources | Lucis blog
- 7 tips that lead me to high-quality sleep (2025)
- Insights & resources | Lucis blog
- Insights & resources | Lucis blog
- Lucis | List of tests
Working with these fonts
Not found on Google Fonts? Instructions that you can follow if you have permission to use the fonts:
CharacterQuilt.com suggests this flow that can help:
- Open the company's homepage in a browser with DevTools open.
- In the Network tab, filter by "Font" (or by extension: 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.
Programmatic alternative: load the URL with Playwright or Puppeteer, listen for response events whose Content-Type starts with font/, and write the body to disk. The CSS extraction step is the same.
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": "light",
"fonts": [
{
"family": "rationalText",
"role": "body"
},
{
"family": "abcDiatype",
"role": "heading"
}
],
"colors": {
"primary": "#000000",
"secondary": "#272D2B",
"accent": "#000000",
"background": "#272D2B",
"textPrimary": "#272D2B",
"link": "#000000"
},
"typography": {
"fontFamilies": {
"primary": "rationalText",
"heading": "abcDiatype"
},
"fontStacks": {
"heading": [
"gtAlpinaLight",
"gtAlpinaLight Fallback",
"sans-serif"
],
"body": [
"ui-sans-serif",
"system-ui",
"sans-serif",
"Apple Color Emoji",
"Segoe UI Emoji",
"Segoe UI Symbol",
"Noto Color Emoji"
],
"paragraph": [
"rationalText",
"sans-serif"
]
},
"fontSizes": {
"h1": "75px",
"h2": "42px",
"body": "16px"
}
},
"spacing": {
"baseUnit": 4,
"borderRadius": "0px"
},
"components": {
"buttonPrimary": {
"background": "#000000",
"textColor": "#FFFFFF",
"borderRadius": "33554400px",
"borderRadiusCorners": {
"topLeft": "33554400px",
"topRight": "33554400px",
"bottomRight": "33554400px",
"bottomLeft": "33554400px"
},
"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, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.12) 0px 4px 4px -2px, rgba(0, 0, 0, 0.04) 0px 12px 16px 4px, rgba(0, 0, 0, 0.08) 0px 8px 32px 0px"
},
"buttonSecondary": {
"background": "transparent",
"textColor": "#272D2B",
"borderColor": "#1F2422",
"borderRadius": "33554400px",
"borderRadiusCorners": {
"topLeft": "33554400px",
"topRight": "33554400px",
"bottomRight": "33554400px",
"bottomLeft": "33554400px"
},
"shadow": "none"
}
},
"images": {
"logo": "https://www.lucis.life/_next/static/media/lucis-with-text.c4a7d160.svg?dpl=dpl_5reHZ2PZHMoYHGDyG3gC2FvKWHAS",
"favicon": "https://www.lucis.life/favicons/favicon.png",
"ogImage": "https://www.lucis.life/assets/seo/lucis-opengraph-en.png",
"logoHref": "/",
"logoAlt": "Lucis"
},
"__llm_logo_reasoning": {
"selectedIndex": 0,
"reasoning": "Selected #0 because it is visible, located in the header, links to the homepage, and the alt text matches the brand name 'Lucis'.",
"confidence": 0.95,
"source": "llm"
},
"__llm_button_reasoning": {
"primary": {
"index": 0,
"text": "Start with Lucis Care",
"reasoning": "Button #1 ('Start with Lucis Care') has a strong call-to-action text and a distinct dark background color (#000000), making it stand out as the primary CTA."
},
"secondary": {
"index": 1,
"text": "Start with Lucis Discovery",
"reasoning": "Button #2 ('Start with Lucis Discovery') has a transparent background, providing a clear contrast to the primary button's dark color, making it suitable as a secondary CTA."
},
"confidence": 0.9
},
"personality": {
"tone": "professional",
"energy": "medium",
"targetAudience": "health-conscious individuals"
},
"designSystem": {
"framework": "tailwind",
"componentLibrary": ""
},
"confidence": {
"buttons": 0.9,
"colors": 0.9,
"overall": 0.9
},
"__llm_metadata": {
"logoSelection": {
"llmCalled": true,
"llmSucceeded": true,
"finalSource": "llm",
"rawLogoSelection": {
"selectedLogoIndex": 0,
"selectedLogoReasoning": "Selected #0 because it is visible, located in the header, links to the homepage, and the alt text matches the brand name 'Lucis'.",
"confidence": 0.95
}
},
"buttonClassification": {
"llmCalled": true,
"llmSucceeded": true
}
}
}