Which color format should I use for CSS?

HEX and RGB are the most widely supported; HSL is often easier to reason about when you want to tweak lightness or saturation without changing the base hue.

Does CMYK conversion match what my printer will output?

It gives a mathematical approximation — actual printed color also depends on your specific printer, ink, and paper, so treat it as a close estimate rather than an exact match.

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Color Converter & WCAG Contrast Checker

Convert between HEX, RGB, HSL, and CMYK color models with real-time WCAG accessibility contrast ratios.

HEX Color Code

RGB

rgb(241, 90, 36)

HSL

hsl(16°, 88%, 54%)

CMYK

0%, 63%, 85%, 5%

WCAG Contrast

6.23:1 (vs Black)

3.37:1 (vs White)

Quick Reference & Instructions

Simple steps, pro tips, and execution details

Paste or Enter Input

Paste your raw JSON, code snippet, tokens, or values into the input panel.

Select Options & Modes

Choose formatting options, indentation spaces, or target conversion standards.

Copy or Download Output

One-click copy to clipboard or download the formatted file ready for production.

How It Works

Parses color strings into mathematical components and computes relative luminance against black and white.

Frequently Asked Questions

Common questions about calculations, assumptions, and edge cases.

It measures the luminance difference between your text and background color — WCAG AA requires at least 4.5:1 for normal text and 3:1 for large text to be considered accessible.

In-Depth Guides & Tutorials

Explore all guides →

8 min read•web performance

How to Convert HEX, RGB, HSL and Check WCAG Color Contrast

Learn how digital color models work, how to convert HEX codes into RGB and HSL values, and how to verify WCAG AA and AAA accessibility contrast compliance.

Read Tutorial

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