The highest level of accessibility conformance. Level AAA represents the gold standard for web accessibility with 31 enhanced success criteria.
Gold Standard
Enhanced Accessibility
24 Criteria
31
Level AAA Criteria
Enhanced accessibility standards
About Level AAA
Level AAA is the highest level of WCAG conformance. While not required for entire websites, achieving AAA for specific content demonstrates exceptional commitment to accessibility.
•Recommended for specialized content (educational, healthcare, government)
•Often required for specific use cases or high-traffic pages
•Demonstrates commitment to the highest accessibility standards
Progress Overview
0/86
Total Progress
0%
Complete
0/24
Level AA
0/31
Level AAA
0 of 86 criteria completed
Filtering & Controls
Showing 31 of 86 criteria
1.2.6
AAA
Sign Language (Prerecorded)
Sign language interpretation is provided for all prerecorded audio content.
1.2.7
AAA
Extended Audio Description (Prerecorded)
Extended audio description is provided when regular audio description is insufficient.
1.2.8
AAA
Media Alternative (Prerecorded)
A text alternative is provided for all prerecorded synchronized media.
1.2.9
AAA
Audio-only (Live)
A text alternative is provided for live audio-only content.
1.3.6
AAA
Identify Purpose
The purpose of User Interface Components can be programmatically determined.
1.4.6
AAA
Contrast (Enhanced)
Text has a contrast ratio of at least 7:1 (4.5:1 for large text).
1.4.7
AAA
Low or No Background Audio
Audio content has no background sounds or they can be turned off.
1.4.8
AAA
Visual Presentation
Text content presentation can be adjusted by the user.
1.4.9
AAA
Images of Text (No Exception)
Images of text are only used for decoration or where essential.
2.1.3
AAA
Keyboard (No Exception)
All functionality is available from a keyboard interface without exception.
2.2.3
AAA
No Timing
Timing is not an essential part of the event or activity.
2.2.4
AAA
Interruptions
Interruptions can be postponed or suppressed by the user.
2.2.5
AAA
Re-authenticating
User data is preserved when a session expires and re-authentication is required.
2.2.6
AAA
Timeouts
Users are warned of the duration of inactivity that could cause data loss.
2.3.2
AAA
Three Flashes
Web pages do not contain anything that flashes more than three times per second.
2.3.3
AAA
Animation from Interactions
Motion animation triggered by interaction can be disabled.
2.4.10
AAA
Section Headings
Section headings are used to organize the content.
2.4.12
AAA
Focus Not Obscured (Enhanced)
When a component receives keyboard focus, no part of it is hidden.
2.4.13
AAA
Focus Appearance
The focus indicator has sufficient size and contrast.
2.4.8
AAA
Location
Information about the user's location within a set of pages is available.
2.4.9
AAA
Link Purpose (Link Only)
The purpose of each link can be identified from the link text alone.
2.5.5
AAA
Target Size (Enhanced)
Target size is at least 44 by 44 CSS pixels except in specific cases.
2.5.6
AAA
Concurrent Input Mechanisms
Content does not restrict use of input modalities.
3.1.3
AAA
Unusual Words
A mechanism is available for identifying specific definitions of words.
3.1.4
AAA
Abbreviations
A mechanism for identifying the expanded form of abbreviations is available.
3.1.5
AAA
Reading Level
Text requires reading ability no higher than lower secondary education level.
3.1.6
AAA
Pronunciation
A mechanism is available for identifying pronunciation of words.
3.2.5
AAA
Change on Request
Changes of context are initiated only by user request.
3.3.5
AAA
Help
Context-sensitive help is available.
3.3.6
AAA
Error Prevention (All)
All user input can be checked and confirmed before submission.
3.3.9
AAA
Accessible Authentication (Enhanced)
Authentication methods don't rely on cognitive function tests.