This resource is designed for anyone eager to master digital accessibility. Explore WCAG success criteria through clear, easy-to-understand descriptions. We owe a special "hat tip" to Johannes Lehner’s WCAG Card Deck, which served as the inspiration for this project.
We plan to expand this library over time, so please check back regularly for updates.
9 success criteria found for Level A, AA, AAA and 3.3 Input Assistance category
Level Level A, WCAG principle: Understandable
Assigned to the following themes: FORMS WORDING
Errors and validation must be clearly identified and described in text, not just visually (like color or highlighting).
Level Level A, WCAG principle: Understandable
Assigned to the following themes: CODE AND LABELS FORMS
Form fields must have clear labels or instructions to avoid confusion and help complete the input correctly.
Level Level A, WCAG principle: Understandable
Assigned to the following themes: FORMS
Don't ask for the same information twice in the same process.
Provide pre-filled fields or selection options if the information was already given.
Level Level AA, WCAG principle: Understandable
Assigned to the following themes: FORMS WORDING
Errors and validation messages must show text that:
Level Level AA, WCAG principle: Understandable
Assigned to the following themes: FORMS WORDING
Important forms like a legal agreement or submitting financial information offer the opportunity to check the information entered before sending.
Level Level AA, WCAG principle: Understandable
Assigned to the following themes: FORMS
Authentication must not rely on memory alone.
Allow copy-paste, password managers, or other options (like email verification).
Level Level AAA, WCAG principle: Understandable
Assigned to the following themes: FORMS WORDING
Provide additional help (like text instructions, help links, or tooltips) when label alone might be ambiguous or confusing.
Level Level AAA, WCAG principle: Understandable
Assigned to the following themes: FORMS WORDING
Before submitting, all forms must allow:
Level Level AAA, WCAG principle: Understandable
Assigned to the following themes: FORMS
Authentication must not rely on memory or recognition (like solving puzzles, remembering images, or using CAPTCHAs).