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Encycolorpedia vs HTML Color Codes: catalog facts
Encycolorpedia	HTML Color Codes
Freemium Free with ads; ad-free and API plans cost $9.99, $29.99 or $149.99 per year.	Free Free to use in the browser; no paid tier is mentioned on the page.
Web	Web
Paint matching for any color code Conversions between many color spaces	Converts between Hex, RGB, HSL and OKLCH Extracts colors from uploaded images
Free version shows advertising More a color reference than a palette builder	Reference-style site rather than a full palette workspace Developer is not named on the page
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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