Compare software

ColorableContrast Finder
Free

Free to use in the browser.

 Free

Free to use online and open source for self-hosting.

Web Web, Self-hosted
  • Shows contrast ratio and WCAG level together
  • HSL sliders for text and background
  • Suggests valid colors close to the original
  • Choose to adjust text or background color
  • Tests a single pair at a time
  • Minimal interface with few extra features
  • Checks one color pair at a time
  • Focused only on contrast, not other accessibility criteria
Web application Web application, Self-hosted
Closed source Open source
License not stated License: AGPL-3.0
No account needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.