Accessibility Learning Center
Learn about web accessibility principles, standards, and best practices
Get Started with Accessibility
Explore our guides, resources, and best practices
- Introduction to Web Accessibility
- Understanding Assistive Technologies
- Legal Requirements and Standards
- Accessibility Business Case
- Semantic HTML Best Practices
- ARIA Roles and Properties
- Keyboard Navigation Implementation
- Focus Management Techniques
- Color Contrast Requirements
- Typography and Readability
- Inclusive Design Patterns
- Form Design Best Practices
- Manual Testing Techniques
- Screen Reader Testing Guide
- Automated Testing Tools
- Creating an Accessibility Test Plan
- WCAG 2.2 Requirements
- ADA Compliance Guide
- Section 508 Requirements
- EU Accessibility Directive
- Accessible Rich Internet Applications
- Dynamic Content Accessibility
- Accessible Multimedia
- Cognitive Accessibility Considerations
What is WCAG?
The Web Content Accessibility Guidelines (WCAG) are developed through the W3C process in cooperation with individuals and organizations around the world, with a goal of providing a single shared standard for web content accessibility that meets the needs of individuals, organizations, and governments internationally.
First Major Standard
Published in 2008, establishing the foundation of modern web accessibility guidelines.
Mobile Enhancements
Released in 2018, adding 17 new success criteria focused on mobile accessibility, low vision, and cognitive disabilities.
Latest Standard
Published in 2023, introducing additional success criteria for improved accessibility.
Conformance Levels
Basic accessibility features that will have the biggest impact on users.
Addresses the biggest barriers. This is the standard most organizations aim for.
The highest level of accessibility, addressing nuanced and specialized needs.