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Color Supply vs Atmos: catalog facts
Color Supply	Atmos
Free Used directly in the browser; no pricing is mentioned.	Freemium Free to start; an account login is offered for further use.
Web	Web
Visual color wheel for picking combinations Previews palettes on sample shapes	Uniform shade and scale generation Semantic status colors from a primary color
Little documentation on the site No accessibility or contrast checking described	Browser only Some features may need an account
Web application	Web application
Closed 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	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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