Design & color
Small, exact tools for designers and front-end developers: color conversion, accessibility contrast checks, palettes from images and favicon sets ready for any site.
Color Converter
Convert colours between HEX, RGB, HSL, HSV, CMYK and OKLCH instantly.
Contrast Checker
Check text and background colours against WCAG 2.2 AA and AAA.
Image Color Picker
Pick any colour from an image and extract its main palette.
Favicon Generator
Create favicon.ico, Apple touch and Android icons plus the HTML, from one image.
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Design & color: common questions
Which colour formats are supported?
Any CSS colour as input — HEX, rgb(), hsl(), oklch() or a colour name — and HEX, RGB, HSL, HSV, CMYK and OKLCH as output, each with a copy button.
How is contrast measured?
With the WCAG 2.x relative-luminance formula. The checker shows the ratio and whether it passes AA and AAA for normal and large text and for interface parts.
Are uploaded images used for the colour picker stored?
No. The image is drawn in your browser only; it is never uploaded.