Accessibility in Web Design: Best Practices for 2025

1. Design with Semantic HTML

Semantic HTML creates meaningful content structure that assistive technologies (like screen readers) rely on to interpret content correctly. Use elements such as:

• <header>, <nav>, <main>, <footer>
• Proper <h1> to <h6> hierarchy
• <label> tags for form inputs

These elements make content more accessible and maintainable.

2. Ensure Sufficient Color Contrast

Color plays a key role in design, but for accessibility in web design, it should never be the only way to convey information. In 2025, a minimum contrast ratio of 4.5:1 between text and background is required for normal text, and 3:1 for large text.

Use tools like:

• Contrast Checker
• Browser DevTools’ Accessibility panel

3. Make Keyboard Navigation Seamless

Some users rely solely on keyboards to navigate. Ensure that:

• All interactive elements (buttons, links, forms) are keyboard-accessible

• Focus states are visible and consistent

• Skip links (e.g., “Skip to main content”) are available

Use the tabindex attribute and logical tab order for smooth flow.

4. Provide Text Alternatives for Non-Text Content

Add alt attributes to images and descriptive captions for video content. For multimedia:

• Use closed captions for videos

• Include transcripts for audio content

• Label icons and buttons with aria-label or screen reader-friendly text

This helps users who use screen readers or have slow internet connections.

5. Use ARIA Roles and Landmarks Wisely

ARIA (Accessible Rich Internet Applications) attributes can enhance accessibility in web design, but they must be used carefully. Best practices include:

• Using native HTML before ARIA (e.g., <button> is better than <div role="button">)

• Assigning roles such as role="dialog" or role="alert" when needed

• Avoiding unnecessary aria-hidden elements

6. Responsive and Accessible Together

Responsive design must go hand-in-hand with accessibility:

• Ensure that touch targets are large enough on mobile

• Use rem/em units for scalable typography

• Avoid horizontal scrolling and fixed-height content blocks

Test responsiveness across devices and assistive tech tools.

7. Conduct Automated and Manual Testing

While tools like axe, WAVE, and Lighthouse are useful for catching common issues, manual testing is critical:

• Use screen readers like NVDA or VoiceOver

• Navigate via keyboard only

• Validate against WCAG 2.2 standards

Include real user testing with people who have disabilities for more accurate insights.

8. Keep Forms User-Friendly

Forms are essential but can often be accessibility pain points. Follow these guidelines:

• Associate labels clearly with inputs

• Provide error messages and success confirmations

• Use aria-describedby for contextual hints

Also, never rely solely on placeholder text for instructions.

9. Write Clear, Concise Content

Accessible content is easy to understand:

• Use plain language

• Structure content with short paragraphs and bullet points

• Use descriptive link text (e.g., “Download the accessibility guide” instead of “Click here”)

10. Build an Accessibility Culture

Accessibility isn’t a checkbox—it’s a mindset. Make it part of your workflow:

• Involve accessibility early in design and development

• Train teams regularly

• Document accessibility standards in your design system