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ColorBrewer vs iWantHue: catalog facts
ColorBrewer	iWantHue
Best for: Cartographers and data analysts choosing colors for maps and charts	Best for: Data scientists choosing colors for charts with many categories
Free Free to use in the browser.	Free Free to use, with source code on GitHub.
Web	Web
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	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
Limited to its curated set of schemes Interface is aimed at cartography rather than general design	Aimed at categorical data colors, not brand or UI palettes Colorblind optimisation is slow
Web application	Web application
Open source	Not open 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 Sources for ColorBrewer colorbrewer2.org Catalog checked September 23, 2026	Official website Full listing and sources Sources for iWantHue medialab.github.io/iwanthue Catalog checked September 24, 2026

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