Complete Course
WCAG 2.2 Level AAA
Learn all 31 WCAG 2.2 Level AAA success criteria, from enhanced contrast and focus appearance to reading level and sign language, how to test each one, and how to choose the ones worth adopting for your product.
~3 hours of content
Course Content
15 comprehensive lessons covering everything you need to know
Introduction
Introduction
Course Overview
Meet your instructor, see how every lesson is built, and learn why Level AAA is a menu of criteria to choose from, not a target.
Introduction
From Level AA to Level AAA
The essentials of WCAG, what Level AAA conformance means, why the W3C does not recommend requiring it, and the 31 criteria it adds.
Introduction
Your Level AAA testing toolkit
The 7:1 check, measuring a focus indicator, reduced-motion emulation, a flash analysis tool, an audio level meter, and readability formulas.
Perceivable
Lesson
Lesson 1Time-based media
1.2.6 to 1.2.9: sign language, extended audio description, descriptive transcripts, and real-time text for live audio.
Lesson
Lesson 2Identify purpose
1.3.6: regions, controls, and icons whose purpose software can read, so personalization tools can adapt the page.
Lesson
Lesson 3Enhanced contrast, and background audio
1.4.6 and 1.4.7: 7:1 for text and 4.5:1 for large text, and background sound 20 dB below the speech.
Lesson
Lesson 4Visual presentation, and images of text
1.4.8 and 1.4.9: blocks of text people can read comfortably, and no images of text unless essential.
Operable
Lesson
Lesson 5Keyboard, timing, and interruptions
2.1.3, 2.2.3, and 2.2.4: the keyboard with no path exception, no time limits unless essential, and interruptions the user can postpone.
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Lesson 6Re-authenticating and timeouts
2.2.5 and 2.2.6: no data lost when a session expires, and inactivity limits announced before they matter.
Lesson
Lesson 7Flashes and animation
2.3.2 and 2.3.3: no more than three flashes a second, and motion triggered by interaction that can be turned off.
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Lesson 8Finding your way
2.4.8, 2.4.9, and 2.4.10: where you are in the site, link texts that stand on their own, and section headings.
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Lesson 9Focus appearance, and focus not obscured
The new 2.4.12 and 2.4.13: focus never partly hidden, and an indicator big enough and changing enough to notice.
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Lesson 10Target size and concurrent input
2.5.5 and 2.5.6: targets of 44 by 44 CSS pixels with no spacing allowance, and every input accepted at once.
Understandable
Lesson
Lesson 11Unusual words, abbreviations, and pronunciation
3.1.3, 3.1.4, and 3.1.6: definitions for idioms and jargon, expanded abbreviations, and pronunciation where meaning depends on it.
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Lesson 12Reading level
3.1.5: a simpler version or supplemental content for text above the lower secondary education level.
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Lesson 13Change on request, and help
3.2.5 and 3.3.5: changes of context only when the user asks, and help right where it is needed.
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Lesson 14Error prevention and authentication
3.3.6 and the new 3.3.9: safeguards for every submission, and logins with no puzzles at all.
Choosing and auditing AAA criteria
Lesson
Lesson 15Choosing and auditing AAA criteria
A 31-row table, a method to choose a product's AAA criteria, how to test them, and how to report them honestly.
Bonus & Conclusion
Bonus
Bonus: beyond the success criteria
The W3C's cognitive accessibility guidance, testing with disabled people, and what WCAG 3 is.
Bonus
Bonus: Level AAA work with an AI assistant
An AI assistant as a writing partner for plain language, glossaries, and help text, where it goes wrong, and how to verify every claim.
Conclusion
Congratulations!
You have completed the WCAG 2.2 Level AAA course!