WordPress Accessibility Guide: Build Inclusive Sites

Published April 21, 2026

WordPress Accessibility Guide

Web accessibility ensures your site works for people with disabilities — visual impairments, motor limitations, cognitive differences, and hearing loss. Beyond being the right thing to do, accessibility improves SEO, expands your audience, and in many jurisdictions, it's a legal requirement for commercial websites.

Understanding WCAG

The Web Content Accessibility Guidelines (WCAG) define four principles — Perceivable, Operable, Understandable, and Robust. WCAG 2.1 AA compliance is the standard target for most commercial sites. WCAG 2.2 (current) adds additional criteria for mobile and cognitive accessibility.

Choosing an Accessible Theme

WordPress.org's theme directory tags themes with "accessibility-ready" when they meet baseline standards: proper heading hierarchy, keyboard navigation, focus indicators, sufficient color contrast, and skip navigation links. Themes like Astra, GeneratePress, and Twenty Twenty-Four (the default WordPress theme) have strong accessibility foundations.

Color Contrast Requirements

WCAG AA requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Use the WebAIM Contrast Checker to verify your theme's color combinations. Common failures: light gray text on white backgrounds, low-contrast button text, and disabled form field text that's too faint to read.

Keyboard Navigation

Every interactive element — links, buttons, form fields, modal dialogs, dropdown menus — must be operable with a keyboard. Test by unplugging your mouse and tabbing through your site. Verify that focus indicators are visible (the outline that shows which element is focused) and that logical tab order is maintained.

Image Alt Text

All informational images need descriptive alt text. Decorative images should have empty alt attributes (alt="") so screen readers skip them. In WordPress, add alt text when uploading images to the media library. The Accessibility Checker plugin audits your content and flags missing alt text automatically.

Forms and Error Messages

Form inputs need associated labels (not just placeholder text). Error messages must be specific and appear near the relevant field. Use aria-required="true" for required fields and aria-describedby to link error messages to their inputs.

Testing Tools