spline.json

Spline Brand Identity

A complete profile of Spline's visual system — colors, typography, components, and personality — extracted from http://spline.design/. Built for designers, agents, and AI tools.

Quick Facts

Field Value
Primary #96B3FF
Accent #3DDC84
Body Font Spline Sans
Heading Font Spline Sans

Color Palette

Typography

Visual Assets

UI Components

Brand Personality

Tone: modern · Energy: high · Audience: designers and creative professionals

Spline Brand in the Wild

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

Working with these fonts

Not found on Google 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

{
  "colorScheme": "dark",
  "fonts": [
    {
      "family": "Spline Sans",
      "role": "body"
    },
    {
      "family": "Helvetica Neue",
      "role": "body"
    },
    {
      "family": "Helvetica",
      "role": "body"
    },
    {
      "family": "Arial",
      "role": "body"
    }
  ],
  "colors": {
    "primary": "#96B3FF",
    "secondary": "#915EFF",
    "accent": "#3DDC84",
    "background": "#000000",
    "textPrimary": "#FFFFFF",
    "link": "#3DDC84"
  },
  "typography": {
    "fontFamilies": {
      "primary": "Spline Sans",
      "heading": "Spline Sans"
    },
    "fontStacks": {
      "heading": [
        "Spline Sans",
        "system-ui",
        "-apple-system",
        "BlinkMacSystemFont",
        "Helvetica Neue",
        "Helvetica",
        "Arial",
        "sans-serif"
      ],
      "body": [
        "Spline Sans",
        "system-ui",
        "-apple-system",
        "BlinkMacSystemFont",
        "Helvetica Neue",
        "Helvetica",
        "Arial",
        "sans-serif"
      ],
      "paragraph": [
        "Spline Sans",
        "system-ui",
        "-apple-system",
        "BlinkMacSystemFont",
        "Helvetica Neue",
        "Helvetica",
        "Arial",
        "sans-serif"
      ]
    },
    "fontSizes": {
      "h1": "16px",
      "h2": "16px",
      "body": "12px"
    }
  },
  "spacing": {
    "baseUnit": 4,
    "borderRadius": "16px"
  },
  "components": {
    "buttonPrimary": {
      "background": "#333333",
      "textColor": "#FFFFFF",
      "borderRadius": "50px",
      "borderRadiusCorners": {
        "topLeft": "50px",
        "topRight": "50px",
        "bottomRight": "50px",
        "bottomLeft": "50px"
      },
      "shadow": "none"
    },
    "buttonSecondary": {
      "background": "#0D0D0D",
      "textColor": "#B3B3B3",
      "borderColor": "#0D0D0D",
      "borderRadius": "50px",
      "borderRadiusCorners": {
        "topLeft": "50px",
        "topRight": "50px",
        "bottomRight": "50px",
        "bottomLeft": "50px"
      },
      "shadow": "none"
    }
  },
  "images": {
    "logo": "https://spline.design/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fspline_logo.54f4e584.png&w=128&q=75",
    "favicon": "https://spline.design/images/icon_favicon16x16.png",
    "ogImage": "https://spline.design/_next/static/media/spline_image_banner.77c2eb63.png",
    "logoHref": "/",
    "logoAlt": "Spline logo"
  },
  "__llm_logo_reasoning": {
    "selectedIndex": 0,
    "reasoning": "Selected #0 because it is visible, located in the header, links to the homepage, and matches the brand name 'Spline'.",
    "confidence": 0.95,
    "source": "llm"
  },
  "__llm_button_reasoning": {
    "primary": {
      "index": 0,
      "text": "Get Started",
      "reasoning": "The 'Get Started' button is likely the primary CTA due to its action-oriented text and neutral background color, which stands out against the dark theme."
    },
    "secondary": {
      "index": 1,
      "text": "Log In",
      "reasoning": "The 'Log In' button serves as a secondary action with a darker background, making it less prominent than the primary CTA."
    },
    "confidence": 0.9
  },
  "personality": {
    "tone": "modern",
    "energy": "high",
    "targetAudience": "designers and creative professionals"
  },
  "designSystem": {
    "framework": "custom",
    "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 matches the brand name 'Spline'.",
        "confidence": 0.95
      }
    },
    "buttonClassification": {
      "llmCalled": true,
      "llmSucceeded": true
    }
  }
}