Compare software

Color StudioColorBox
Free

Free and open source under the Apache 2.0 licence.

 Free

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

macOS Web
  • Focuses on coherent palettes rather than single colors
  • Considers accessibility when building themes
  • Fine control over each channel with easing curves
  • Shows contrast ratios for every step
  • No formal releases published on GitHub
  • Small project maintained by one developer
  • Curve-based controls take some learning
  • Aimed at systematic scales rather than quick inspiration
Downloadable app Web application
Open source Closed source
License: Apache-2.0 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 October 2, 2026

Checked September 23, 2026

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