CSS Color Contrast Checker
Color Selection
Text Sample
Contrast Results
Preset Color Combinations
About WCAG Contrast Ratios
The Web Content Accessibility Guidelines (WCAG) defines minimum contrast ratios for text:
- AA requires a contrast ratio of at least 4.5:1 for normal text
- AAA requires a contrast ratio of at least 7:1 for normal text
- AA requires a contrast ratio of at least 3:1 for large text (18pt+)
- AAA requires a contrast ratio of at least 4.5:1 for large text
Related Tools
CSS Color Contrast Checker: Your Complete Solution
Ensure your website's text and background colors meet accessibility standards by checking their contrast ratio. This tool helps create readable and accessible designs compliant with WCAG guidelines.
Why is it Useful?
Good color contrast improves readability and accessibility for all users, including those with visual impairments:
- Enhances text visibility and legibility
- Ensures compliance with WCAG accessibility standards
- Improves user experience for people with color blindness or low vision
- Prevents legal issues related to accessibility
- Supports inclusive web design practices
Key Features
- Checks contrast ratio between foreground and background colors
- Supports HEX, RGB, HSL color formats
- Provides WCAG compliance levels (AA, AAA)
- Suggests alternative colors for better contrast
- Real-time feedback and color preview
How to Use?
- Enter the foreground (text) color code
- Enter the background color code
- Click 'Check Contrast' to analyze the color combination
- Review the contrast ratio and WCAG compliance results
- Adjust colors as needed to meet accessibility guidelines
Use Cases
This tool is useful for:
- Web Designers and Developers: Ensure accessible color schemes
- Content Creators: Improve readability of text on backgrounds
- Accessibility Auditors: Verify compliance with standards
- Educators: Teach color accessibility principles
- Anyone: Creating user-friendly digital content
Benefits
- Improves website accessibility for diverse users
- Helps comply with legal accessibility requirements
- Enhances overall user experience
- Easy to use with instant feedback
- Supports multiple color formats
Frequently Asked Questions
What is the minimum contrast ratio for WCAG AA?
The minimum contrast ratio is 4.5:1 for normal text and 3:1 for large text.
Can I check multiple color combinations at once?
This tool checks one foreground/background pair at a time for accuracy.
What color formats are supported?
HEX, RGB, and HSL color formats are supported.
Does it suggest alternative colors?
Yes, it provides suggestions to improve contrast if the colors fail compliance.
Is this tool free?
Yes, it is completely free with no registration required.