Compare software

Color StudioLeonardo
Free

Free and open source under the Apache 2.0 licence.

 Free

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

macOS Web
  • Focuses on coherent palettes rather than single colors
  • Considers accessibility when building themes
  • Generates swatches from target contrast ratios
  • Adaptive themes make dark mode variants quick
  • No formal releases published on GitHub
  • Small project maintained by one developer
  • Aimed at design systems work, more than a simple palette picker needs
  • Contrast-driven approach takes some learning
Downloadable app Web application
Open source Open source
License: Apache-2.0 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 October 2, 2026

Checked September 23, 2026

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