Building for Accessibility: A Developer's Guide

Why Accessibility Matters

Building accessible applications isn't just the right thing to do—it's also good business. Over 1 billion people worldwide live with some form of disability.

Core Principles (POUR)

• Perceivable: Information must be presentable to users
• Operable: UI components must be operable by all users
• Understandable: Information and UI must be understandable
• Robust: Content must be robust enough for various technologies

Key Implementation Areas

Semantic HTML

Use proper HTML elements for their intended purpose. Screen readers rely on semantic markup.

Keyboard Navigation

Ensure all interactive elements are keyboard accessible. Test your app without a mouse.

Color and Contrast

Maintain sufficient color contrast (4.5:1 for normal text). Don't rely solely on color to convey information.

ARIA Labels

Use ARIA attributes to provide additional context for assistive technologies.

Focus Management

Visible focus indicators and logical focus order are essential for keyboard users.

Testing for Accessibility

• Use automated tools like Lighthouse and axe
• Test with screen readers (VoiceOver, NVDA)
• Conduct manual keyboard testing
• Include users with disabilities in testing

SupaCode Accessibility

Our generated code follows accessibility best practices, including proper semantic markup, ARIA labels, and keyboard navigation support.