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HSLuv vs Colorpicker.me: catalog facts
HSLuv	Colorpicker.me
Best for: Developers and designers who generate colors programmatically and want even lightness	Best for: Quickly picking a color and getting its code in several formats
Free The online picker is free to use.	Free Free to use in the browser.
Web	Web
Perceptually uniform alternative to HSL Saturation expressed as a simple percentage All 3 strengths for HSLuv Perceptually uniform alternative to HSL Saturation expressed as a simple percentage Interactive picker shows the color space directly	Converts between hex, RGB, HSL and HSV Suggests six kinds of color combinations All 4 strengths for Colorpicker.me Converts between hex, RGB, HSL and HSV Suggests six kinds of color combinations Saved colors persist between visits Direct links to a color via the URL
Mainly a color space definition, so the web picker is fairly minimal Explaining CIELUV assumes some interest in color theory	Basic tool without palette export files No contrast or accessibility checking
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 HSLuv hsluv.org Catalog checked October 2, 2026	Official website Full listing and sources Sources for Colorpicker.me colorpicker.me Catalog checked October 2, 2026

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