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HuetoneAccessible Palette
Free

Free open-source web tool.

 Free

Free to use in the browser; no paid tier is mentioned on the page.

Web Web
  • Uses the perceptually based LCH color space
  • Helps keep palettes accessible across hues
  • Consistent perceived lightness across hues
  • Shows WCAG 2 and WCAG 3 contrast for each step
  • Assumes some familiarity with color spaces
  • Aimed at palette building rather than quick color picking
  • Assumes familiarity with LCh values
  • Developer and export options are not described on the page
Web application Web application
Open source Closed source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 24, 2026

Checked September 23, 2026

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