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Leonardo vs Geenes: catalog facts
Leonardo	Geenes
Free Free to use in the browser, with source published on GitHub.	Free Free to use in the browser; no paid plan is mentioned.
Web	Web
Generates swatches from target contrast ratios Adaptive themes make dark mode variants quick	Builds whole color scales from hue and saturation curves Exports palettes to Sketch or code
Aimed at design systems work, more than a simple palette picker needs Contrast-driven approach takes some learning	Little public documentation about the tool Export targets are limited to Sketch and code
Web application	Web application
Open source	Closed 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 23, 2026	Official website Full listing and sources Checked September 24, 2026

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