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HCL Wizard vs HSLuv: catalog facts
HCL Wizard	HSLuv
Free Used directly in the browser; no pricing is mentioned.	Free The online picker is free to use.
Web	Web
Perception-based HCL color space Color vision deficiency emulator for checking figures	Perceptually uniform alternative to HSL Saturation expressed as a simple percentage
Aimed at data visualization more than general design Assumes some familiarity with color space concepts	Mainly a color space definition, so the web picker is fairly minimal Explaining CIELUV assumes some interest in color theory
Web application	Web application
Closed source	Closed 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 Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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