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Chroma.js Color Palette Helper vs iWantHue: catalog facts
Chroma.js Color Palette Helper	iWantHue
Free Free to use in the browser.	Free Free to use, with source code on GitHub.
Web	Web
Focuses on perceptually balanced color steps Checks palettes for colorblind safety	Produces perceptually distinct colors Colorblind-friendly option
Specialised for data visualization rather than UI themes Plain interface with little guidance	Aimed at categorical data colors, not brand or UI palettes Colorblind optimisation is slow
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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