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iWantHue vs ColorBrewer: catalog facts
iWantHue	ColorBrewer
Best for: Data scientists choosing colors for charts with many categories	Best for: Cartographers and data analysts choosing colors for maps and charts
Free Free to use, with source code on GitHub.	Free Free to use in the browser.
Web	Web
Produces perceptually distinct colors Colorblind-friendly option All 4 strengths for iWantHue Produces perceptually distinct colors Colorblind-friendly option Exports to JSON, CSS and JavaScript in several color spaces Can correct or complete an existing palette	Filters for colorblind safe, print and photocopy safe schemes Map preview with context layers All 3 strengths for ColorBrewer Filters for colorblind safe, print and photocopy safe schemes Map preview with context layers Exports to ASE, GIMP palette, JavaScript and CSS
Aimed at categorical data colors, not brand or UI palettes Colorblind optimisation is slow	Limited to its curated set of schemes Interface is aimed at cartography rather than general design
Web application	Web application
Not open source	Open source
License not stated	License not stated
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Sources for iWantHue medialab.github.io/iwanthue Catalog checked September 24, 2026	Official website Full listing and sources Sources for ColorBrewer colorbrewer2.org Catalog checked September 23, 2026

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