Making accessibility standards easy to understand, one success criterion at a time.

disability: Visual

Promotes web accessibility for people with blindness, low vision, or color blindness.

WCAG 2.0, 2.1, 2.2 Level AAA

2.2.5 Re-authenticating

If a logged-in session expires mid-way through a task, any data entered after expiry is kept, so that they don’t have to re-enter it when they log in again.

Forms
Cognitive, Visual
Code
WCAG 2.1, 2.2 Level AAA

2.2.6 Timeouts

A warning is shown if a logged-in session is about to expire.

Forms
Cognitive, Visual
Code
WCAG 2.0, 2.1, 2.2 Level A

2.3.1 Three Flashes or Below Threshold

Flashing content must not exceed three flashes per second unless it is within safe limits.

Sensory
Cognitive, Visual
Content, Design
WCAG 2.0, 2.1, 2.2 Level AAA

2.3.2 Three Flashes

Flashing content must never exceed three flashes per second, without exceptions.

Sensory
Cognitive, Visual
Content, Design
WCAG 2.1, 2.2 Level AAA

2.3.3 Animation from Interactions

Animations triggered by interactions like button presses can be turned off.

Sensory
Cognitive, Visual
Code, Design
WCAG 2.0, 2.1, 2.2 Level A

2.4.1 Bypass Blocks

‘Skip links’ are available for keyboard users to jump past navigation.

Keyboard
Cognitive, Physical/Motor, Visual
Code, Design
WCAG 2.0, 2.1, 2.2 Level AAA

2.4.10 Section Headings

Headings are used to group distinct sections on a page.

Code and Labels
Cognitive, Visual
Content, Design
WCAG 2.2 Level AA

2.4.11 Focus Not Obscured (Minimum)

The keyboard focus is not completely hidden by other content.

Keyboard
Cognitive, Physical/Motor, Visual
Code, Design
WCAG 2.2 Level AAA

2.4.12 Focus Not Obscured (Enhanced)

The keyboard focus is fully visible at all times.

Keyboard
Cognitive, Physical/Motor, Visual
Code, Design
WCAG 2.2 Level AAA

2.4.13 Focus Appearance

Focus indicators are at least 2px thick and have a 3:1 contrast ratio against adjacent colors.

Keyboard, Sensory
Cognitive, Physical/Motor, Visual
Code, Design