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Reference

WCAG Understanding

Plain-language breakdowns of WCAG 2.2 success criteria written from a tester's perspective. Pages are added over time — unpublished criteria link to the official W3C understanding docs.

1. Perceivable

1.1 — Text Alternatives

1.1.1Non-text Content
A

1.2 — Time-based Media

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

1.3 — Adaptable

1.3.1Info and Relationships
A
1.3.2Meaningful Sequence
A
1.3.3Sensory Characteristics
A
1.3.4Orientation
AA
1.3.5Identify Input Purpose
AA
1.3.6Identify Purpose
AAA

1.4 — Distinguishable

1.4.1Use of Color
A
1.4.2Audio Control
A
1.4.3Contrast (Minimum)
AA
1.4.4Resize Text
AA
1.4.5Images of Text
AA
1.4.6Contrast (Enhanced)
AAA
1.4.7Low or No Background Audio
AAA
1.4.8Visual Presentation
AAA
1.4.9Images of Text (No Exception)
AAA
1.4.10Reflow
AA
1.4.11Non-text Contrast
AA
1.4.12Text Spacing
AA
1.4.13Content on Hover or Focus
AA

2. Operable

2.1 — Keyboard Accessible

2.1.1Keyboard
A
2.1.2No Keyboard Trap
A
2.1.3Keyboard (No Exception)
AAA
2.1.4Character Key Shortcuts
A

2.2 — Enough Time

2.2.1Timing Adjustable
A
2.2.2Pause, Stop, Hide
A
2.2.3No Timing
AAA
2.2.4Interruptions
AAA
2.2.5Re-authenticating
AAA
2.2.6Timeouts
AAA

2.3 — Seizures and Physical Reactions

2.3.1Three Flashes or Below Threshold
A
2.3.2Three Flashes
AAA
2.3.3Animation from Interactions
AAA

2.4 — Navigable

2.4.1Bypass Blocks
A
2.4.2Page Titled
A
2.4.3Focus Order
A
2.4.4Link Purpose (In Context)
A
2.4.5Multiple Ways
AA
2.4.6Headings and Labels
AA
2.4.7Focus Visible
AA
2.4.8Location
AAA
2.4.9Link Purpose (Link Only)
AAA
2.4.10Section Headings
AAA
2.4.11Focus Not Obscured (Minimum)
AA
2.4.12Focus Not Obscured (Enhanced)
AAA
2.4.13Focus Appearance
AA

2.5 — Input Modalities

2.5.1Pointer Gestures
A
2.5.2Pointer Cancellation
A
2.5.3Label in Name
A
2.5.4Motion Actuation
A
2.5.5Target Size (Enhanced)
AAA
2.5.6Concurrent Input Mechanisms
AAA
2.5.7Dragging Movements
AA
2.5.8Target Size (Minimum)
AA

3. Understandable

3.1 — Readable

3.1.1Language of Page
A
3.1.2Language of Parts
AA
3.1.3Unusual Words
AAA
3.1.4Abbreviations
AAA
3.1.5Reading Level
AAA
3.1.6Pronunciation
AAA

3.2 — Predictable

3.2.1On Focus
A
3.2.2On Input
A
3.2.3Consistent Navigation
AA
3.2.4Consistent Identification
AA
3.2.5Change on Request
AAA
3.2.6Consistent Help
A

3.3 — Input Assistance

3.3.1Error Identification
A
3.3.2Labels or Instructions
A
3.3.3Error Suggestion
AA
3.3.4Error Prevention (Legal, Financial, Data)
AA
3.3.5Help
AAA
3.3.6Error Prevention (All)
AAA
3.3.7Redundant Entry
A
3.3.8Accessible Authentication (Minimum)
AA
3.3.9Accessible Authentication (Enhanced)
AAA

4. Robust

4.1 — Compatible

4.1.1Parsing (Obsolete and removed)
A
4.1.2Name, Role, Value
A
4.1.3Status Messages
AA