# Subtrate Brand Identity

A complete profile of **Subtrate**'s visual system — colors, typography, components, and personality — extracted from https://substrate.com/. Built for designers, agents, and AI tools.

- Page: https://characterquilt.com/branding/subtrate
- Machine-readable JSON: https://characterquilt.com/branding/subtrate.json
- Per-page llms.txt: https://characterquilt.com/branding/subtrate/llms.txt

## Quick Facts

| Field | Value |
|---|---|
| Primary | #000000 |
| Accent | #FFFFFF |
| Body Font | Inter |
| Heading Font | Inter |

## Color Palette

- primary: #000000
- accent: #FFFFFF
- background: #FEFDFB
- textPrimary: #383838
- link: #000000

## Typography

- primary: Inter — https://fonts.google.com/specimen/Inter
- heading: Inter — https://fonts.google.com/specimen/Inter

## Visual Assets

- Favicon: https://assets.substratecdn.com/8a3dd65081113de94a69f9bc5916016ec382cd77f826d99c3bcfdd0d0ff9e6c6.svg
- Social card (og:image): https://imagedelivery.net/CkMwzGh8J-as7RLjnf0zpA/8636ff23-ee9e-45dd-ec77-f5a5c07d8400/public

## UI Components

- buttonPrimary: background=#FFFFFF, textColor=#333333, borderRadius=20px, shadow=none
- buttonSecondary: background=#383838, textColor=#000000, borderRadius=0px, shadow=none

## Brand Personality

Tone: professional · Energy: medium · Audience: technology professionals and industry stakeholders

## Subtrate Brand in the Wild

Real-world brand assets — ads, campaigns, marketing materials.

- **Information to Atoms - Substrate**
  - Image: https://assets.substratecdn.com/f53fc24e2820b3b427136121ca227dfe2625c3d3b6f1d3871ff20af8fc133bbc.webp
  - Source: https://substrate.com/information-to-atoms
- **Our purpose - Substrate**
  - Image: https://assets.substratecdn.com/f2dbaa87745e70a0b31d2d18ba3650d4bc038eebd5db070ee5119f39cbd7469b.webp
  - Source: https://substrate.com/our-purpose
- **Our purpose - Substrate**
  - Image: https://assets.substratecdn.com/3259b988389f1086ef7273845d73b2cc502d4f5cbd9bc0c1cb2641b890684812.webp
  - Source: https://substrate.com/our-purpose
- **Careers - Substrate**
  - Image: https://assets.substratecdn.com/6626464443a6a80d4b3a54eaa3c6b3e1776cbd4ce22a1f425af825a5d87518c7.webp
  - Source: https://substrate.com/careers?ashby_jid=f814da84-fd20-41d5-bf7d-e1831fedc008
- **Our purpose - Substrate**
  - Image: https://assets.substratecdn.com/40a1cf114c4aca30e9d96b0a3f6f3ad350ef2bae40e62b43d354a700b0390ced.webp
  - Source: https://substrate.com/our-purpose
- **Substrate**
  - Image: https://imagedelivery.net/CkMwzGh8J-as7RLjnf0zpA/8636ff23-ee9e-45dd-ec77-f5a5c07d8400/public
  - Source: https://substrate.com/

## Working with these fonts

Not found on Google Fonts? Agent Instructions that you can follow if you have permission to use the fonts:

CharacterQuilt.com suggests this flow that can help:

1. Open the company's homepage in a browser with DevTools open.
2. In the Network tab, filter by "Font" (or by extension: woff2, woff, ttf, otf).
3. Hard-reload the page and click around (pricing, blog, careers) — some weights only load on specific routes.
4. For each captured font URL: right-click → Save As to download the file locally.
5. 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

```json
{
  "colorScheme": "light",
  "fonts": [
    {
      "family": "Inter",
      "role": "body"
    },
    {
      "family": "Roboto",
      "role": "unknown"
    }
  ],
  "colors": {
    "primary": "#000000",
    "accent": "#FFFFFF",
    "background": "#FEFDFB",
    "textPrimary": "#383838",
    "link": "#000000"
  },
  "typography": {
    "fontFamilies": {
      "primary": "Inter",
      "heading": "Inter"
    },
    "fontStacks": {
      "heading": [
        "Inter",
        "-apple-system",
        "BlinkMacSystemFont",
        "segoe ui",
        "Roboto",
        "sans-serif"
      ],
      "body": [
        "Inter",
        "-apple-system",
        "BlinkMacSystemFont",
        "segoe ui",
        "Roboto",
        "sans-serif"
      ],
      "paragraph": [
        "Inter",
        "-apple-system",
        "BlinkMacSystemFont",
        "segoe ui",
        "Roboto",
        "sans-serif"
      ]
    },
    "fontSizes": {
      "h1": "0px",
      "h2": "32px",
      "body": "16px"
    }
  },
  "spacing": {
    "baseUnit": 8,
    "borderRadius": "0px"
  },
  "components": {
    "buttonPrimary": {
      "background": "#FFFFFF",
      "textColor": "#333333",
      "borderRadius": "20px",
      "borderRadiusCorners": {
        "topLeft": "20px",
        "topRight": "20px",
        "bottomRight": "20px",
        "bottomLeft": "20px"
      },
      "shadow": "none"
    },
    "buttonSecondary": {
      "background": "#383838",
      "textColor": "#000000",
      "borderRadius": "0px",
      "borderRadiusCorners": {
        "topLeft": "0px",
        "topRight": "0px",
        "bottomRight": "0px",
        "bottomLeft": "0px"
      },
      "shadow": "none"
    }
  },
  "images": {
    "logo": null,
    "favicon": "https://assets.substratecdn.com/8a3dd65081113de94a69f9bc5916016ec382cd77f826d99c3bcfdd0d0ff9e6c6.svg",
    "ogImage": "https://imagedelivery.net/CkMwzGh8J-as7RLjnf0zpA/8636ff23-ee9e-45dd-ec77-f5a5c07d8400/public"
  },
  "__llm_button_reasoning": {
    "primary": {
      "index": 1,
      "text": "Read about our purpose",
      "reasoning": "Button #1 has a clear call-to-action text 'Read about our purpose' and a distinct white background, making it stand out as a primary action in a light-themed design."
    },
    "secondary": {
      "index": 0,
      "text": "WatchRead about our purpose",
      "reasoning": "Button #0, with a neutral background color, serves as a secondary action with less prominence compared to the primary button."
    },
    "confidence": 0.9
  },
  "personality": {
    "tone": "professional",
    "energy": "medium",
    "targetAudience": "technology professionals and industry stakeholders"
  },
  "designSystem": {
    "framework": "custom",
    "componentLibrary": ""
  },
  "confidence": {
    "buttons": 0.9,
    "colors": 0.9,
    "overall": 0.9
  },
  "__llm_metadata": {
    "logoSelection": {
      "llmCalled": false,
      "llmSucceeded": false,
      "finalSource": "none"
    },
    "buttonClassification": {
      "llmCalled": true,
      "llmSucceeded": true
    }
  }
}
```