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WCAG compliance checking and accessibility improvements. Use for auditing websites, fixing a11y issues, and implementing inclusive design.
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Based on SOC occupation classification
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| name | accessibility-audit |
| description | WCAG compliance checking and accessibility improvements. Use for auditing websites, fixing a11y issues, and implementing inclusive design. |
| Principle | Description |
|---|---|
| Perceivable | Content viewable by all users |
| Operable | Interface usable by all users |
| Understandable | Clear and predictable |
| Robust | Works with assistive tech |
<!-- Bad ❌ -->
<img src="logo.png">
<!-- Good ✅ -->
<img src="logo.png" alt="Company Logo">
<!-- Decorative (empty alt) -->
<img src="divider.png" alt="">
<!-- Bad ❌ -->
<input type="text" placeholder="Email">
<!-- Good ✅ -->
<label for="email">Email Address</label>
<input type="email" id="email" name="email" required>
<!-- Bad ❌ -->
<div onclick="submit()">Submit</div>
<!-- Good ✅ -->
<button type="submit">Submit</button>
<!-- Bad ❌ -->
<a href="#">Click here</a>
<!-- Good ✅ -->
<a href="/products">View all products</a>
| Level | Ratio | Use For |
|---|---|---|
| AA Normal | 4.5:1 | Regular text |
| AA Large | 3:1 | 18pt+ or 14pt bold |
| AAA Normal | 7:1 | Enhanced accessibility |
/* Good contrast */
.text {
color: #1e293b; /* Dark gray */
background: #ffffff; /* White */
/* Contrast ratio: 13.5:1 ✅ */
}
/* Bad contrast */
.text {
color: #94a3b8; /* Light gray */
background: #ffffff; /* White */
/* Contrast ratio: 2.8:1 ❌ */
}
// Focus management
element.focus();
element.blur();
// Focus trap for modals
const focusableElements = modal.querySelectorAll(
'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'
);
<!-- Live regions for dynamic content -->
<div aria-live="polite" aria-atomic="true">
Status: Loading...
</div>
<!-- Hidden visually but readable -->
<span class="sr-only">Opens in new tab</span>
.sr-only {
position: absolute;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
border: 0;
}
# Lighthouse CLI
npx lighthouse https://example.com --view
# axe-core
npm install axe-core