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Designs react.dev

React design: colors, fonts and an AI prompt.

React's website sets its type in Optimistic Text, on a dark #16181D canvas with #EBECF0 text and a #58C4DC accent. Copy the palette and fonts, or a ready prompt to build something original in this style with Claude Code, Cursor, Lovable or v0.

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    Type and shape

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      In this style

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      prompt.md

      What font does React use?

      React's website sets both headings and body text in Optimistic Text, with Source Code Pro for code. Body text is 17px, section headings 28px and the largest display type 52px, at weight 500. If you can't use Optimistic Text, ask your AI for the closest free match and keep the sizes and weights.

      What are React's colors?

      Canvas#16181Dthe page background
      Surface#343A46cards and raised areas
      Text#EBECF0primary text
      Accent#58C4DCbuttons, links and focus
      Muted#999999secondary text and captions
      Border#343A46dividers and outlines

      It also ships a light mode: canvas #FFFFFF, text #23272F.

      How do I build a site that looks like React with AI?

      Open the Prompt tab above, change its first line to what you are building, and paste it into Lovable, v0, Bolt, Claude Code or Cursor. For a whole project, install the Claude skill or the Cursor rule instead, so every screen keeps the style. Build something original: keep React's look, not its name, logo or copy.

      Read from react.dev's public CSS on 8 October 2026. Siteprint is not affiliated with React; names and trademarks belong to their owners.