Accessibility

WCAG 2.1 Guidelines and Compliance Levels

WCAG Principles (POUR)

• Perceivable: Information and UI components must be presentable in ways users can perceive
• Operable: UI components and navigation must be operable
• Understandable: Information and operation of UI must be understandable
• Robust: Content must be robust enough to be interpreted by assistive technologies

Compliance Levels

• Level A: Minimum level of accessibility
• Level AA: Standard level, required by many laws and regulations
• Level AAA: Highest level, rarely required but ideal