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Adobe Color vs kmeans-colors: catalog facts
Adobe Color	kmeans-colors
Free No paywall was found on the tool pages, which load without signing in; the page's call to…	Free Free and open source, dual-licensed under MIT and Apache 2.0.
Web	Command line
Generates palettes from a base color using monochromatic, complementary, analogous, triadic and other harmonies Extracts palettes and gradients from uploaded images	Extracts dominant colors or a palette from an image Also does binarization and color style transfer
Web only; no downloadable application is offered on color.adobe.com Homepage is JavaScript-rendered; curl returns only a shell with metadata	Command-line only, with no graphical interface No GitHub releases; installation may need the Rust toolchain
Web application, Hosted service	Downloadable app
Closed source	Open source
License not stated	License: MIT OR Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 2, 2026

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