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Muzli Colors vs Happy Hues: catalog facts
Muzli Colors	Happy Hues
Best for: UI designers choosing a palette and checking it in a mock layout	Best for: Curated color palettes shown applied live to an example website UI
Free Free to use in the browser.	Free Free web tool.
Web	Web
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	Shows palettes in real UI context instead of flat swatches Free to use with no signup
Part of a wider promotional design inspiration service Requires an internet connection	Limited to the curated set of palettes provided Web-based only, no downloadable app
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
Needs internet	Not stated if it works offline
Official website Full listing and sources Sources for Muzli Colors colors.muz.li Catalog checked September 24, 2026	Official website Full listing and sources Sources for Happy Hues happyhues.co Catalog checked September 22, 2026

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