WCAG 2.2 Accessibility Reference

Plain English guides to all 55 WCAG 2.2 Level AA success criteria. Each page explains what the criterion means, common pitfalls, how to fix violations, and links to official sources.

Perceivable

1.1 Text Alternatives

1.1.1 Non-text ContentA

1.2 Time-based Media

1.2.1 Audio-only and Video-onlyA
1.2.2 Captions (Prerecorded)A
1.2.3 Audio Description or Media AltA
1.2.4 Captions (Live)AA
1.2.5 Audio Description (Prerecorded)AA
1.2.6 Sign Language (Prerecorded)AAA
1.2.7 Extended Audio DescriptionAAA
1.2.8 Media Alternative (Prerecorded)AAA
1.2.9 Audio-only (Live)AAA

1.3 Adaptable

1.3.1 Info and RelationshipsA
1.3.2 Meaningful SequenceA
1.3.3 Sensory CharacteristicsA
1.3.4 OrientationAA
1.3.5 Identify Input PurposeAA

1.4 Distinguishable

1.4.1 Use of ColorA
1.4.2 Audio ControlA
1.4.3 Contrast (Minimum)AA
1.4.4 Resize TextAA
1.4.5 Images of TextAA
1.4.10 ReflowAA
1.4.11 Non-text ContrastAA
1.4.12 Text SpacingAA
1.4.13 Content on Hover or FocusAA
1.4.6 Contrast (Enhanced)AAA
1.4.7 Low or No Background AudioAAA
1.4.8 Visual PresentationAAA
1.4.9 Images of Text (No Exception)AAA

Operable

2.1 Keyboard Accessible

2.1.1 KeyboardA
2.1.2 No Keyboard TrapA
2.1.4 Character Key ShortcutsA
2.1.3 Keyboard (No Exception)AAA

2.2 Enough Time

2.2.1 Timing AdjustableA
2.2.2 Pause, Stop, HideA
2.2.3 No TimingAAA
2.2.4 InterruptionsAAA
2.2.5 Re-authenticatingAAA

2.3 Seizures and Physical Reactions

2.3.1 Three FlashesA
2.3.2 Three Flashes (No Threshold)AAA

2.4 Navigable

2.4.1 Bypass BlocksA
2.4.2 Page TitledA
2.4.3 Focus OrderA
2.4.4 Link Purpose (In Context)A
2.4.5 Multiple WaysAA
2.4.6 Headings and LabelsAA
2.4.7 Focus VisibleAA
2.4.11 Focus Not ObscuredAA
2.4.8 LocationAAA
2.4.9 Link Purpose (Link Only)AAA
2.4.10 Section HeadingsAAA

2.5 Input Modalities

2.5.1 Pointer GesturesA
2.5.2 Pointer CancellationA
2.5.3 Label in NameA
2.5.4 Motion ActuationA
2.5.7 Dragging MovementsAA
2.5.8 Target Size (Minimum)AA

Understandable

3.1 Readable

3.1.1 Language of PageA
3.1.2 Language of PartsAA
3.1.3 Unusual WordsAAA
3.1.4 AbbreviationsAAA
3.1.5 Reading LevelAAA
3.1.6 PronunciationAAA

3.2 Predictable

3.2.1 On FocusA
3.2.2 On InputA
3.2.3 Consistent NavigationAA
3.2.4 Consistent IdentificationAA
3.2.6 Consistent HelpA
3.2.5 Change on RequestAAA

3.3 Input Assistance

3.3.1 Error IdentificationA
3.3.2 Labels or InstructionsA
3.3.3 Error SuggestionAA
3.3.4 Error Prevention (Legal, Financial)AA
3.3.7 Redundant EntryA
3.3.8 Accessible AuthenticationAA
3.3.5 HelpAAA
3.3.6 Error Prevention (All)AAA

Robust

4.1 Compatible

4.1.2 Name, Role, ValueA
4.1.3 Status MessagesAA