Color Contrast Checker
Verify your colors meet global web accessibility standards instantly.
Text Color (Foreground)#2563EB
Background Color#F8FAFC
Live UI Mockup Preview
Interactive Hero Header Element
This is standard paragraph body text. It is rendered using the selected foreground ink color against the background card container color. Ensuring high readability helps visitors scan document resources easily.
Color Blindness Simulation Previews
Master Web Accessibility with Precision Data
This tool serves as a reliable color contrast checker for every design project. It helps you follow the color contrast accessibility guidelines set by WCAG. The Standard Level AA requires a ratio of 4.5:1 for normal text. Larger header components need at least 3.0:1. For Premium Level AAA, you must hit 7.0:1 for paragraph blocks. This tool acts as an accessibility colour checker to ensure inclusivity. Relative luminance scales from zero to one on this scale. Pure white on pure black yields a maximum ratio of 21.0:1.
Key Features
WCAG Standards
Check your designs against AA and AAA levels instantly.
Live Mockup Preview
See how text looks in real world UI components.
Color Blindness Simulation
View colors through four different vision filters.
Auto Fix Options
Get instant color suggestions to meet accessibility targets.
Luminance Ratios
Calculate exact brightness values for any hex or RGB pair.
How to Use
Choose Colors
Enter your foreground and background hex codes.
Check Ratio
View the instant contrast ratio and WCAG status.
Preview & Fix
Use the live mockup to see results or click fix buttons.
Frequently Asked Questions (FAQ)
No, because layout and keyboard navigation also matter for true accessibility.
You can create accessible variants of your brand colors to improve readability.
Darken your text color or lighten your background until you reach the target ratio.
It directly affects how people with visual impairments read your content easily.
Yes, it handles both formats to provide accurate accessibility data instantly.
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