Compare software

Leonardo vs iWantHue: catalog facts
LeonardoiWantHue
Free

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

Free

Free to use, with source code on GitHub.

Web Web
  • Generates swatches from target contrast ratios
  • Adaptive themes make dark mode variants quick
  • Produces perceptually distinct colors
  • Colorblind-friendly option
  • Aimed at design systems work, more than a simple palette picker needs
  • Contrast-driven approach takes some learning
  • Aimed at categorical data colors, not brand or UI palettes
  • Colorblind optimisation is slow
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 Needs internet

Checked September 23, 2026

Checked September 24, 2026

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