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