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Geenes vs Huetone: catalog facts
Geenes	Huetone
Free Free to use in the browser; no paid plan is mentioned.	Free Free open-source web tool.
Web	Web
Builds whole color scales from hue and saturation curves Exports palettes to Sketch or code	Uses the perceptually based LCH color space Helps keep palettes accessible across hues
Little public documentation about the tool Export targets are limited to Sketch and code	Assumes some familiarity with color spaces Aimed at palette building rather than quick color picking
Web application	Web application
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is 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 September 24, 2026

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