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ColorSpace vs Sessions College Color Calculator: catalog facts
ColorSpace	Sessions College Color Calculator
Free Free to use in the browser.	Free Free to use on the Sessions College website.
Web	Web
Many palettes generated from a single input color Gradient generator with up to three colors	Builds palettes from classic color harmonies Gives hex, RGB and CMYK values for each color
Few controls over how palettes are generated No accessibility or contrast checks mentioned	Sits inside a college marketing site with course promotion around it Covers harmonies only, without contrast or accessibility checks
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	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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