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Coolors vs Flat UI Colors: catalog facts
Coolors	Flat UI Colors
Freemium Free to use with a paid plan for extra features.	Free Free to use in the browser.
Web	Web
Very fast palette generation with keyboard shortcuts Large community of shared palettes to browse	280 curated colors in 14 palettes One-click copy of color codes
Some features are locked behind a paid plan Web-based only, no offline desktop app	Fixed palettes, no palette generator Limited to the flat design style
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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