Advanced Color Contrast Checker

Test color combinations against WCAG 2.2 and 3.0 standards with professional-grade accuracy.

WCAG Version:

2.2

3.0

Text Size:

Normal

Large

Color Picker

Adjust colors using hex values or RGB sliders.

Foreground Color

Background Color

Tip: Use the color pickers for precise selection

Live Preview

See how your text looks with the selected colors in different contexts.

Sample Heading

This is an example of how your text will look with the selected color combination. The text should be easily readable for all users, including those with visual impairments.

Small text example for testing readability at different sizes.

Sample Link

#000000

Foreground

#FFFFFF

Background

Contrast Results

WCAG 2.2

WCAG 2.2 contrast ratio compliance information

21:1

Contrast Ratio

AA Level (normal text)

Pass

AAA Level (normal text)

Pass

WCAG 2.2 Requirements

• AA Level: 4.5:1 minimum

• AAA Level: 7:1 minimum

Smart Color Recommendations

Explore different color schemes while maintaining accessibility.

About Contrast Standards

Understanding WCAG 2.2 and 3.0 contrast requirements.

WCAG 2.2
Traditional Contrast Ratio

WCAG 2.2 uses the traditional contrast ratio formula based on relative luminance. This method has been the standard for web accessibility compliance.

AA Level: 4.5:1 (normal), 3:1 (large text)
AAA Level: 7:1 (normal), 4.5:1 (large text)
Large Text: 18pt+ or 14pt+ bold

WCAG 3.0
APCA (Advanced)

WCAG 3.0 introduces APCA (Advanced Perceptual Contrast Algorithm), which better reflects human visual perception and provides more accurate contrast measurements.

Bronze Level: 60Lc (normal), 45Lc (large text)
Silver Level: 75Lc (normal), 60Lc (large text)
Improved accuracy for different color combinations

Note: WCAG 3.0 is still in development. Use WCAG 2.2 for current compliance requirements.

Essential Accessibility Resources

Comprehensive tools, checklists, and guides to help you create inclusive digital experiences

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WCAG 2.2 Interactive Checklist

Complete interactive checklist with all 78 WCAG 2.2 success criteria

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Color Contrast FAQ

What is the minimum contrast ratio for WCAG compliance?

WCAG 2.2 Level AA requires a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text (18pt+ or 14pt+ bold). Level AAA requires 7:1 for normal text and 4.5:1 for large text. Our contrast checker tests both levels automatically.

How do I use the color contrast checker?

Simply input your foreground and background colors using the color pickers or hex codes. The tool instantly calculates the contrast ratio and shows whether it meets WCAG AA or AAA standards. You can adjust colors in real-time to achieve compliance.

Why is color contrast important for accessibility?

Adequate color contrast ensures text and UI elements are readable for users with visual impairments, including those with low vision or color blindness. It also improves readability in different lighting conditions and on various devices, benefiting all users.

Color Contrast FAQ

Advanced Color Contrast Checker

Sample Heading

WCAG 2.2 Requirements

WCAG 2.2Traditional Contrast Ratio

WCAG 3.0APCA (Advanced)

Essential Accessibility Resources

Color Contrast FAQ

What is the minimum contrast ratio for WCAG compliance?

How do I use the color contrast checker?

Why is color contrast important for accessibility?

Advanced Color Contrast Checker

Sample Heading

WCAG 2.2 Requirements

WCAG 2.2Traditional Contrast Ratio

WCAG 3.0APCA (Advanced)

Essential Accessibility Resources

Color Contrast FAQ

What is the minimum contrast ratio for WCAG compliance?

How do I use the color contrast checker?

Why is color contrast important for accessibility?

WCAG 2.2
Traditional Contrast Ratio

WCAG 3.0
APCA (Advanced)

WCAG 2.2
Traditional Contrast Ratio

WCAG 3.0
APCA (Advanced)