Accessibility Compliance

Table of Contents

• Overview
• When to Use
• Quick Start
• Reference Guides
• Best Practices

Overview

Implement comprehensive accessibility features following WCAG guidelines to ensure your application is usable by everyone, including people with disabilities.

When to Use

• Building public-facing web applications
• Ensuring WCAG 2.1/2.2 AA or AAA compliance
• Supporting screen readers (NVDA, JAWS, VoiceOver)
• Implementing keyboard-only navigation
• Meeting ADA, Section 508, or similar regulations
• Improving SEO and overall user experience
• Conducting accessibility audits

Quick Start

Minimal working example:

<!-- Bad: Non-semantic markup -->
<div class="button" onclick="submit()">Submit</div>

<!-- Good: Semantic HTML -->
<button type="submit" aria-label="Submit form">Submit</button>

<!-- Custom components with proper ARIA -->
<div
  role="button"
  tabindex="0"
  aria-pressed="false"
  onclick="toggle()"
  onkeydown="handleKeyPress(event)"
>
  Toggle Feature
</div>

<!-- Form with proper labels and error handling -->
<form>
  <label for="email">Email Address</label>
  <input
    id="email"
    type="email"
    name="email"
    aria-required="true"
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

| Guide | Contents | |---|---| | Semantic HTML with ARIA | Semantic HTML with ARIA | | React Component with Accessibility | React Component with Accessibility | | Keyboard Navigation Handler | Keyboard Navigation Handler | | Color Contrast Validator | Color Contrast Validator | | Screen Reader Announcements | Screen Reader Announcements | | Focus Management | Focus Management |

Best Practices

✅ DO

• Use semantic HTML elements
• Provide text alternatives for images
• Ensure sufficient color contrast (4.5:1 minimum)
• Support keyboard navigation
• Implement focus management
• Test with screen readers
• Use ARIA attributes correctly
• Provide skip links
• Make forms accessible with labels
• Support text resizing up to 200%

❌ DON'T

• Rely solely on color to convey information
• Remove focus indicators
• Use only mouse/touch interactions
• Auto-play media without controls
• Create keyboard traps
• Use positive tabindex values
• Override user preferences
• Hide content only visually that should be hidden from screen readers