Instantly Test Color Contrast for Accessibility Compliance
Check your website's text and background color combinations for accessibility and readability compliance with this simple contrast ratio tool.
Color Contrast Checker
🔍 What Is the Color Contrast Checker?
The Color Contrast Checker is a fast, intuitive tool that helps designers, developers, and accessibility professionals evaluate whether text and background color combinations meet WCAG 2.1 accessibility standards. It calculates the contrast ratio between two colors and instantly shows whether your selection is compliant for regular or large text.
Whether you’re building a website, app, or graphic, this tool ensures your content is readable for all users—including those with visual impairments.
🧮 How This Calculator Works
Inputs You Provide:
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Text Color: Choose any color via a color picker or hex code input
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Background Color: Choose a background color the same way
As soon as you input colors, the tool automatically displays:
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Contrast Ratio (e.g., 4.5:1)
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Accessibility Rating based on WCAG 2.1:
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AAA (Excellent – small & large text)
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AA (Good – small & large text)
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AA-Large (Acceptable for large text only)
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Fail (Not accessible)
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Visual Preview:
You’ll also see a live preview of how your text appears against the background, making it easy to visualize improvements instantly.
🎯 Why It Matters
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✅ Design interfaces that are inclusive and accessible
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✅ Avoid legal or compliance issues from poor readability
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✅ Improve UX and retention through better contrast
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✅ Align your brand with ethical, user-centered design standards
👤 Who This Is For
This tool is perfect for:
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🎨 UI/UX and Web Designers
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👨💻 Front-End Developers
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🧾 Accessibility Auditors and QA Teams
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📣 Content Creators and Marketers
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🧠 Anyone aiming to create inclusive digital experiences
⚖️ What Are the Standards?
Rating | Contrast Ratio | Compliance |
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AAA | ≥ 7.00:1 | Excellent |
AA | ≥ 4.50:1 | Standard |
AA-Large | ≥ 3.00:1 | Large Text OK |
Fail | < 3.00:1 | Not Compliant |