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0to255 vs Color Hexa: catalog facts
0to255	Color Hexa
Freemium Can be tried for free; 0to255 Studio offers sign-up for an account.	Free Free to use in the browser.
Web	Web
Shows all lighter and darker variations at once instead of using sliders Color grid clusters similar colors for quick scanning	Conversions between color formats Color schemes and shades for any color
Pricing for the Studio version is not clearly stated Needs an internet connection	Works on one color at a time rather than building full palettes
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
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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