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Designs arc.net

Arc design: colors, fonts and an AI prompt.

Arc's website sets its type in Marlin, on a dark #3139FB canvas with #F5F5F5 text and a #2702C2 accent. Copy the palette and fonts, or a ready prompt to build something original in this style with Claude Code, Cursor, Lovable or v0.

Colors tap to copy

    Type and shape

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      In this style

      Ship the page you pictured.

      Your agent builds new screens with these exact colors, type and corners, so nothing looks generic.

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      prompt.md

      What font does Arc use?

      Arc's website sets both headings and body text in Marlin, with ABC Favorit Mono for code. Body text is 14px, section headings 20px and the largest display type 46px, at weight 800. If you can't use Marlin, ask your AI for the closest free match and keep the sizes and weights.

      What are Arc's colors?

      Canvas#3139FBthe page background
      Surface#456378cards and raised areas
      Text#F5F5F5primary text
      Accent#2702C2buttons, links and focus
      Second accent#E5484Dsecondary emphasis
      Muted#FFFFFFsecondary text and captions
      Border#E2E2E2dividers and outlines

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

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