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iWantHue vs HCL Wizard: catalog facts
iWantHue	HCL Wizard
Best for: Data scientists choosing colors for charts with many categories	Best for: Researchers choosing color palettes for plots and figures
Free Free to use, with source code on GitHub.	Free Used directly in the browser; no pricing is mentioned.
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	Perception-based HCL color space Color vision deficiency emulator for checking figures All 3 strengths for HCL Wizard Perception-based HCL color space Color vision deficiency emulator for checking figures Matches the colorspace packages for R and Python
Aimed at categorical data colors, not brand or UI palettes Colorblind optimisation is slow	Aimed at data visualization more than general design Assumes some familiarity with color space concepts
Web application	Web application
Not open source	Not 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 HCL Wizard hclwizard.org Catalog checked September 24, 2026

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