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Brand extraction

When you create a project from a URL, Docsio reads your site's actual CSS and HTML to extract your brand. No upload, no configuration — your docs match your existing brand within the first thirty seconds of generation.

What gets extracted

  • Logo. From your <header> element or your og:image meta tag, whichever has higher fidelity.
  • Favicon. Your <link rel="icon"> or fallback to /favicon.ico.
  • Primary color. The dominant accent color used by buttons and links on your site, sampled from CSS variables and computed styles.
  • Fonts. Detected from <link> tags and font-family declarations. Google Fonts and Adobe Fonts both supported.
  • Color scheme. Light or dark default, based on your site's <html> background.

When extraction works well

  • Your site has a clean CSS variable system (most modern sites built with Tailwind, Vercel, Next.js, Stripe, Linear, etc.)
  • Logo is exposed as an <img> or <svg> in your nav
  • Fonts are loaded the standard way

In those cases, your docs site looks visually like a sibling of your main site within minutes.

When it gets it slightly wrong

A few common cases:

  • Sprite-based logo. Docsio falls back to your favicon. Update the logo manually in Branding → Logo and favicon.
  • No CSS variables, computed colors only. Docsio samples a primary color but it might be off. Adjust in Colors and fonts or just tell the agent: "Set primary color to #5B6CFF."
  • Custom font isn't loaded. Docsio falls back to a clean default sans (DM Sans). To use your real font, see Custom CSS.

When you don't want extraction

If you're starting from files (not a URL), brand extraction doesn't run. You can still set everything manually — same surfaces, same edits.

If extraction grabbed a wrong logo (e.g. a placeholder image), the agent can fix it in one message:

"Use the logo from https://acme.com/logo-mark.svg and a primary color of #5B6CFF."

Refreshing brand later

If your main site rebrands, you don't need to recreate your docs. Open settings → Re-extract brand from URL. Docsio re-runs extraction against the URL you originally provided (or a new one) and updates your docs theme without touching content.

Manual override

Brand extraction sets defaults. Anything you change manually wins — re-extracting brand later won't overwrite settings you've explicitly set.