How to use it
A simple three-step workflow
- 1Choose a colour or enter HEX, RGB or HSL.
- 2Review the synchronized values.
- 3Copy the format you need and inspect text contrast.
Design · Free · No AI
Convert common colour formats, preview the result and compare black and white text contrast.
Contrast 5.70:1
#7C3AEDrgb(124, 58, 237)hsl(262, 83%, 58%)How to use it
Useful context
HEX, RGB and HSL describe the same web colour in different forms. Designers often use HEX in brand guidelines, RGB in code and HSL when adjusting lightness or saturation.
The contrast values use the WCAG relative-luminance formula for opaque sRGB colours. They are helpful for choosing black or white text, but a complete accessibility review should also inspect font size, weight, states and surrounding UI.
Questions
The tool accepts standard six- or three-digit HEX, RGB values and HSL values.
The tool compares WCAG contrast ratios for black and white and displays the higher result.
No. It provides a focused colour comparison, not a complete interface audit.
Keep working
Design
Design two- or three-colour CSS linear gradients.
Open tool →Links & QR
Create a custom QR code and download it as PNG or SVG.
Open tool →Utilities
Count characters, words, lines, paragraphs and reading time.
Open tool →Turn the result into a destination
Create a mobile-first link-in-bio page for Instagram, TikTok, Telegram and every place your audience finds you.