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Data Color Picker vs Chroma.js Color Palette Helper: catalog facts
Data Color Picker	Chroma.js Color Palette Helper
Best for: Analysts and designers choosing colors for charts and dashboards	Best for: Building readable color scales for charts and maps
Free Free web tool from Learn UI Design, which also sells design courses.	Free Free to use in the browser.
Web	Web
Palette, single-hue and divergent modes Preview on light or dark backgrounds All 3 strengths for Data Color Picker Palette, single-hue and divergent modes Preview on light or dark backgrounds Copy HEX values or export as SVG	Focuses on perceptually balanced color steps Checks palettes for colorblind safety All 3 strengths for Chroma.js Color Palette Helper Focuses on perceptually balanced color steps Checks palettes for colorblind safety Aimed at charts and maps
Limited to eight colors per palette Focused on data visualization rather than general UI palettes	Specialised for data visualization rather than UI themes Plain interface with little guidance
Web application	Web application
Not open source	Not open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Data Color Picker learnui.design/tools/data-color-picker.html Catalog checked September 24, 2026	Official website Full listing and sources Sources for Chroma.js Color Palette Helper gka.github.io/palettes Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.