---

name: brand-guidelines description: Brand guidelines for Cosmonic and wasmCloud. Use this skill when creating visual content, presentations, websites, diagrams, or any materials that need to follow Cosmonic or wasmCloud brand standards. Includes an Excalidraw library for diagrams. license: Apache-2.0

Cosmonic & wasmCloud Brand Guidelines

This skill provides official brand colors and typography for Cosmonic and wasmCloud projects.

Cosmonic Brand

Typography

• Primary Font: Work Sans
• Fallback: Arial, sans-serif

Colors

Primary Colors:

Color Name	Hex Code	Usage
Slate Purple	#685BC7	Primary brand color, CTAs, accents
Light Gray	#768692	Secondary text, subtle elements

Secondary Colors:

Color Name	Hex Code	Usage
Yellow	#FFB600	Highlights, warnings, attention
Space Blue	#002E5D	Dark backgrounds, headers
Gunmetal	#253746	Dark text, secondary backgrounds
Gainsboro	#D9E1E2	Light backgrounds, borders, dividers

wasmCloud Brand

Typography

• Primary Font: Lexend
• Fallback: Arial, sans-serif

Colors

Primary Colors:

Color Name	Hex Code	Usage
Green Aqua	#00C389	Primary brand color, CTAs, accents
Light Gray	#768692	Secondary text, subtle elements

Secondary Colors:

wasmCloud shares the same secondary color palette as Cosmonic:

Color Name	Hex Code	Usage
Yellow	#FFB600	Highlights, warnings, attention
Space Blue	#002E5D	Dark backgrounds, headers
Gunmetal	#253746	Dark text, secondary backgrounds
Gainsboro	#D9E1E2	Light backgrounds, borders, dividers

CSS Variables

For web projects, use these CSS custom properties:

/* Cosmonic Brand */
:root {
  --cosmonic-slate-purple: #685BC7;
  --cosmonic-light-gray: #768692;
  --cosmonic-yellow: #FFB600;
  --cosmonic-space-blue: #002E5D;
  --cosmonic-gunmetal: #253746;
  --cosmonic-gainsboro: #D9E1E2;
}

/* wasmCloud Brand */
:root {
  --wasmcloud-green-aqua: #00C389;
  --wasmcloud-light-gray: #768692;
  --wasmcloud-yellow: #FFB600;
  --wasmcloud-space-blue: #002E5D;
  --wasmcloud-gunmetal: #253746;
  --wasmcloud-gainsboro: #D9E1E2;
}

Tailwind Configuration

For Tailwind CSS projects:

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        cosmonic: {
          purple: '#685BC7',
          gray: '#768692',
          yellow: '#FFB600',
          blue: '#002E5D',
          gunmetal: '#253746',
          gainsboro: '#D9E1E2',
        },
        wasmcloud: {
          aqua: '#00C389',
          gray: '#768692',
          yellow: '#FFB600',
          blue: '#002E5D',
          gunmetal: '#253746',
          gainsboro: '#D9E1E2',
        },
      },
      fontFamily: {
        cosmonic: ['Work Sans', 'Arial', 'sans-serif'],
        wasmcloud: ['Lexend', 'Arial', 'sans-serif'],
      },
    },
  },
};

Excalidraw Diagrams

When creating diagrams, use the official wasmCloud & Wasm Excalidraw library which contains reusable components including wasmCloud cluster diagrams and architecture diagram elements.

Library URL: https://raw.githubusercontent.com/excalidraw/excalidraw-libraries/ricochet-wasmcloud-and-wasm-1770917744834/libraries/ricochet/wasmcloud-and-wasm.excalidrawlib?raw=true

Add to Excalidraw: Install Library

Using with Excalidraw MCP Server

When drawing diagrams with the Excalidraw MCP server, always:

1. Use the wasmCloud library — load components from the library above rather than drawing from scratch
2. Use wasmCloud brand colors in all diagram elements:
   • Primary: Green Aqua (#00C389) for main elements, connections, and accents
   • Backgrounds: Light blue (#e5f2ff), light gray (#f4f7fa, #f8f9fa)
   • Dark elements: Deep green (#007054), teal (#00bc8e)
   • Text/outlines: Gunmetal (#253746) or Space Blue (#002E5D)
   • Borders/dividers: Gainsboro (#D9E1E2)
3. Avoid default Excalidraw colors — replace them with the brand palette above

Usage Guidelines

When to Use Cosmonic Branding

• Cosmonic product interfaces and dashboards
• Cosmonic marketing materials
• Cosmonic documentation and websites
• Enterprise and commercial content

When to Use wasmCloud Branding

• wasmCloud open-source project materials
• wasmCloud documentation and tutorials
• Community content and contributions
• Technical demonstrations

Color Combinations

Cosmonic:

• Primary: Slate Purple (#685BC7) on white or Gainsboro backgrounds
• Dark mode: Light text on Space Blue (#002E5D) or Gunmetal (#253746)
• Accents: Yellow (#FFB600) for highlights and CTAs

wasmCloud:

• Primary: Green Aqua (#00C389) on white or Gainsboro backgrounds
• Dark mode: Light text on Space Blue (#002E5D) or Gunmetal (#253746)
• Accents: Yellow (#FFB600) for highlights and CTAs

Accessibility

Ensure sufficient color contrast for text readability:

• Use Gunmetal (#253746) or Space Blue (#002E5D) for body text on light backgrounds
• Use white or Gainsboro (#D9E1E2) for text on dark backgrounds
• Test color combinations with WCAG contrast checkers