Accessibility Contrast Checker
Check if your color combination meets WCAG 2.1 standards for readable and accessible design.
Frequently Asked Questions
Answers to the most common questions about accessibility contrast, WCAG standards, and how to use this tool effectively.
What is a contrast ratio?
The contrast ratio is the difference in luminance between two colors, typically text and background. It determines how readable your content is.
What does WCAG 2.1 require for contrast?
Poor contrast can make text unreadable for users with visual impairments or color blindness, limiting access to your content.
What counts as large text?
This tool checks for WCAG 2.1 AA compliance, which is the recommended baseline for most websites.
Why is color contrast important for accessibility?
The checker uses official WCAG formulas and ensures fully reliable, standards-based results.
Does this tool test for WCAG AA or AAA compliance?
Yes! It works for any text-based element, including buttons, labels, menus, and more.
How accurate is the contrast check?
Not always. Even if it looks bright, the contrast ratio must be tested. Some colors may not pass the 4.5:1 requirement
Does this guarantee legal compliance?
No tool alone can guarantee full compliance. This checker helps meet contrast requirements but accessibility involves many factors.
Do I need to install anything?
No installation needed. Just enter your colors and check the results instantly.