Colour Tools

Convert colour codes, check that text is readable, and turn one colour into a full palette.

3 free tools · No sign-up · Works on any device

Most used

Popular Colour tools

Start here — these are the ones people use most.

Contrast Checker
Check that text is readable on its background, using WCAG standards.
FreePopular

Everything

All Colour Tools

Colour Converter
Convert colours between HEX, RGB, HSL, HSV and CMYK.
Free
Contrast Checker
Check that text is readable on its background, using WCAG standards.
FreePopular
Colour Shades Generator
Turn one colour into a full palette of tints and shades.
Free

FAQ

Colour Tools: common questions

What colour formats are supported?

HEX, RGB, HSL, HSV and CMYK, plus CSS colour names like “teal” as input.

What contrast ratio do I need?

WCAG AA asks for at least 4.5:1 for normal text and 3:1 for large text. The contrast checker tests all the common levels.

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YouTube16 tools Text7 tools Images7 tools PDFs3 tools Developer9 tools Marketing1 tool Productivity4 tools Calculators2 tools SEO2 tools CSS4 tools

Coming later: AI, Social Media.