Arm fonts and type scale
Arm's website sets both headings and body text in Aeonik. Body text is 18px, section headings 24px and the largest display type 80px, at weight 400. If you can't use Aeonik, ask your AI for the closest free match and keep the sizes and weights.
Arm color codes
| Canvas | #000000 | the page background |
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| Surface | #080225 | cards and raised areas |
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| Text | #FFFFFF | primary text |
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| Accent | #7233F7 | buttons, links and focus |
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| Second accent | #C7ADFC | secondary emphasis |
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| Muted | #E2E2E2 | secondary text and captions |
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| Button | #080225 | primary buttons, with #C7ADFC text |
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How do I build a site that looks like Arm 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 Arm's look, not its name, logo or copy.
More designs
Or open the full Arm report, or read any other site on Siteprint.
Measured from arm.com's live page as a browser renders it, at 1440px wide, with the Siteprint extension's scanner, on 25 October 2026. Siteprint is not affiliated with Arm; names and trademarks belong to their owners.