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Chroma.js Color Palette Helper vs Coloring for Colorblindness: catalog facts
Chroma.js Color Palette Helper	Coloring for Colorblindness
Free Free to use in the browser.	Free Free to use in the browser.
Web	Web
Focuses on perceptually balanced color steps Checks palettes for colorblind safety	Previews palettes under several types of color blindness Useful for charts and data visualisation colors
Specialised for data visualization rather than UI themes Plain interface with little guidance	Simulation only, with no automatic palette fixing Single-page tool with few other features
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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