Compare software

HuetoneColorBox
Free

Free open-source web tool.

 Free

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

Web Web
  • Uses the perceptually based LCH color space
  • Helps keep palettes accessible across hues
  • Fine control over each channel with easing curves
  • Shows contrast ratios for every step
  • Assumes some familiarity with color spaces
  • Aimed at palette building rather than quick color picking
  • Curve-based controls take some learning
  • Aimed at systematic scales rather than quick inspiration
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.