ColorTools
Free color picker from image, color wheel, palettes & CSS gradients — no sign-up
ColorTools is a free suite of online color tools: pick colors from any uploaded image (HEX, RGB, HSL), explore the interactive color wheel to build harmonies, generate and browse curated color palettes, create CSS gradients with ready-to-copy code, convert between HEX/RGB/HSL/CMYK, and check WCAG contrast. Works in the browser, free, no account needed. Also available as a Chrome and Edge extension.
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