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Happy Hues vs Muzli Colors: catalog facts
Happy Hues	Muzli Colors
Best for: Curated color palettes shown applied live to an example website UI	Best for: UI designers choosing a palette and checking it in a mock layout
Free Free web tool.	Free Free to use in the browser.
Web	Web
Shows palettes in real UI context instead of flat swatches Free to use with no signup	Previews palettes on sample UI designs Search by use case such as dashboard or logo All 3 strengths for Muzli Colors Previews palettes on sample UI designs Search by use case such as dashboard or logo Large set of popular palettes and collections
Limited to the curated set of palettes provided Web-based only, no downloadable app	Part of a wider promotional design inspiration service Requires an internet connection
Web application	Web application
Not open source	Not 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	Needs internet
Official website Full listing and sources Sources for Happy Hues happyhues.co Catalog checked September 22, 2026	Official website Full listing and sources Sources for Muzli Colors colors.muz.li Catalog checked September 24, 2026

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