Brand Design System Spec Builder

Turns a plain-language brand description into a complete, developer-ready design system spec.

Best For

•Solo founders without a design team who need a documented spec before hiring their first contractor.
•Freelance designers who want to hand clients a written system instead of just a set of Figma files.
•Indie developers building their own product UI who need consistent color, spacing, and component rules without guessing.

Prompt Template

You are a design systems architect. I'm going to describe my brand's visual identity, colors, fonts, logo, general aesthetic. Produce a structured Design System Specification I can hand to any designer or developer to build consistent assets. Output sections: 1. Color System: primary, secondary, accent, semantic (success/warning/error/info), neutrals. For each: hex, RGB, usage rules, accessible contrast pairings 2. Typography Scale: font families (display, body, mono), size scale (in rem), weight usage rules, line-height ratios 3. Spacing Scale: base unit and scale (4px or 8px base), named sizes (xs through 3xl), usage guidelines 4. Component Rules: buttons, cards, inputs, badges, with border-radius, shadow, and padding specs 5. Layout Grid: max-width, column structure, breakpoints, gutter sizes 6. Iconography: style (outline/filled/duotone), size scale, stroke width 7. Motion & Animation: timing function, duration scale, when to animate vs. not 8. Do/Don't Examples: 3-4 visual rules stated as do/don't pairs My brand: [DESCRIBE YOUR BRAND VISUALS HERE, colors, fonts, logo, mood, existing examples]

Pro Tip

Name a reference product whose aesthetic you're aiming for, like 'clean, not playful, think Linear or Notion,' so the model calibrates spacing and color choices to a concrete target instead of defaulting to generic SaaS blue.

Example Output

A sample of what this prompt produces once you fill in the placeholders.

A design system spec with a 12-row color table mapping hex values to usage like CTAs and error states, a six-level typography scale in Inter, and a component rules section specifying border-radius and padding for buttons and cards.

Recommended Tools

Figma

Claude

ChatGPT

How to use this prompt

Copy the prompt template using the button above.
Paste it into your preferred AI assistant (ChatGPT, Claude, Gemini, etc.).
Replace all bracketed placeholders like [TOPIC] with your specific details.
Send the prompt and refine the output as needed.