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LeonardoInclusiveColors
Free

Free to use in the browser, with source published on GitHub.

 Free

The site lists no paid tier.

Web Web
  • Generates swatches from target contrast ratios
  • Adaptive themes make dark mode variants quick
  • Precise control of every tint and shade
  • Live WCAG and APCA contrast checks between color pairs
  • Aimed at design systems work, more than a simple palette picker needs
  • Contrast-driven approach takes some learning
  • Still in beta
  • Focused on UI palettes rather than general color exploration
Web application Web application
Open source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 1, 2026

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