Siteprint

Designs mastodon.social

What font does Mastodon use? Inter and Cal Sans UI.

Mastodon's website sets its type in Inter with Cal Sans UI headings, on a dark #130E2A canvas with #F9F7FC text and a #47309C 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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      Mastodon fonts and type scale

      Mastodon's website sets body text in Inter and headings in Cal Sans UI, with Mastodon Font Monospace for code. Body text is 13px, section headings 24px and the largest display type 32px, at weight 500. If you can't use Inter, ask your AI for the closest free match and keep the sizes and weights.

      Mastodon color codes

      Canvas#130E2Athe page background
      Surface#000000cards and raised areas
      Text#F9F7FCprimary text
      Accent#47309Cbuttons, links and focus
      Border#5638CCdividers and outlines

      It also ships a light mode: canvas #F4FBFD.

      How do I build a site that looks like Mastodon 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 Mastodon's look, not its name, logo or copy.

      Read from mastodon.social's public CSS on 25 October 2026. Siteprint is not affiliated with Mastodon; names and trademarks belong to their owners.