Introduction
The Accessibility Checker is a powerful tool that helps you evaluate and improve the accessibility of your typography choices. It provides real-time feedback on font size, contrast ratio, line height, and font weight, following WCAG 2.1 (AA) guidelines to ensure your text is readable and inclusive for all users.
Why Use an Accessibility Checker?
- WCAG Compliance: Ensure your typography meets WCAG 2.1 (AA) standards
- Inclusive Design: Make your content accessible to users with visual impairments
- Better Readability: Optimize text for all users, not just those with perfect vision
- Legal Compliance: Meet accessibility requirements for websites and applications
- User Experience: Improve overall readability and user satisfaction
How to Use the Accessibility Checker
Enter Typography Settings
- Set your font size (in pixels)
- Choose font weight
- Adjust line height
- Select text and background colors
View Live Preview
- See how your text looks in real-time
- Test readability with sample text
- Make adjustments as needed
Check Results
- Review accessibility feedback
- Address any issues identified
- Implement suggested improvements
WCAG Guidelines
| Category | Requirement | WCAG Level |
|---|
| ≥ 16px for body text, ≥ 14px for UI |
| ≥ 4.5:1 for normal text, ≥ 3:1 for large text |
| 1.4-1.6 for optimal readability |
| ≥ 300 for readability |
Features
Font Size Validation
- Minimum 16px for body text
- Minimum 14px for UI elements
- Real-time size checking
Contrast Ratio Calculator
- WCAG-compliant contrast calculation
- Support for hex and RGB colors
- Different requirements for normal and large text
Line Height Checker
- Optimal range: 1.4-1.6
- Warning for values outside 1.3-1.8
- Real-time feedback
Font Weight Validation
- Minimum weight of 300
- Warning for very light fonts
- Support for all weight values
Best Practices
Font Size
- Use 16px as minimum for body text
- Increase size for better readability
- Consider mobile devices
Contrast
- Maintain high contrast ratios
- Test with different color combinations
- Consider color blindness
Line Height
- Stay within 1.4-1.6 range
- Adjust for different font families
- Consider line length
Font Weight
- Avoid very light weights
- Ensure sufficient contrast
- Test with different backgrounds
Tips for Success
Color Selection
- Use color picker for precise values
- Test with different combinations
- Consider dark mode
Typography
- Choose readable font families
- Test with different sizes
- Consider responsive design
Testing
- Check on different devices
- Test with screen readers
- Verify with real users
Frequently Asked Questions
What is WCAG 2.1 (AA)?
WCAG 2.1 (AA) is a set of web accessibility guidelines that ensure content is accessible to people with disabilities. Level AA is the standard level of compliance required by most regulations.
How is contrast ratio calculated?
The contrast ratio is calculated using the relative luminance of the text and background colors, following the WCAG formula. The tool automatically handles this calculation for you.
What is considered “large text”?
Large text is defined as text that is at least 18pt (24px) in size, or 14pt (18.67px) if bold. Different contrast requirements apply to large text.
Why is line height important?
Line height affects readability by providing appropriate spacing between lines of text. Too little spacing can make text hard to read, while too much can break the visual flow.
How do I fix contrast issues?
If you have contrast issues, try:
- Increasing the contrast between text and background
- Using a darker text color
- Using a lighter background color
- Increasing font weight
Related Tools
Conclusion
The Accessibility Checker is an essential tool for ensuring your typography meets WCAG 2.1 (AA) standards. By following the guidelines and using the tool’s feedback, you can create more accessible and readable content for all users.
Try Accessibility Checker Now