WCAG Explorer (beta)

Success criterion 1.2.6 Sign Language (Prerecorded)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

All prerecorded videos with audio must include a sign language interpretation.

Success criterion 1.2.7 Extended Audio Description (Prerecorded)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Prerecorded videos must include extended audio descriptions if important visual content like:

• important visual details,
• on-screen text not spoken aloud, or
• scenes without natural audio breaks

can't be described during normal playback.

Success criterion 1.2.8 Media Alternative (Prerecorded)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Prerecorded videos must have a full text alternative that includes:

• all speech,
• relevant sound effects (like music, alarms, or laughter), and
• important visual content,

even if captions and audio descriptions are already available.

Success criterion 1.2.9 Audio-only (Live)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY WORDING

Live audio-only content must include a real-time text alternative, such as:

• captions, or
• live transcripts

Success criterion 1.4.6 Contrast (Enhanced)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY ZOOM AND LEGIBILITY

Text contrast against its background must be at least:

• 7:1 for normal text, or
• 4.5:1 for large text (over 24px, or bold and over 19px)

Success criterion 1.4.7 Low or No Background Audio

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY

For prerecorded audio with speech, any background sound must be:

• at least 20dB lower than the speech, or
• there must be a way to turn it off

Success criterion 1.4.8 Visual Presentation

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY ZOOM AND LEGIBILITY

Blocks of text (like paragraphs) must:

• have a line height of at least 1.5,
• not be justified, and
• stay within 80 characters (or 40 for CJK scripts)

allow users to adjust spacing and colors using custom styles.

Success criterion 1.4.9 Images of Text (No Exception)

Level Level AAA, WCAG principle: Perceivable

Assigned to the following themes: SENSORY ZOOM AND LEGIBILITY

Text must be actual text, not images of text (no exception, not even for design or aesthetic reasons).

Success criterion 2.2.3 No Timing

Level Level AAA, WCAG principle: Operable

Assigned to the following themes: FORMS SENSORY

Content must not include time limits for reading or interaction, unless it's part of a live event or time-based activity (e.g. auctions, broadcasts).

Success criterion 2.2.4 Interruptions

Level Level AAA, WCAG principle: Operable

Assigned to the following themes: SENSORY

Interruptions (like pop-ups, alerts, or notifications) must be able to be:

• delayed or suppressed, and
• controlled,

except in emergencies (e.g. critical system warnings).

Success criterion 2.3.2 Three Flashes

Level Level AAA, WCAG principle: Operable

Assigned to the following themes: SENSORY

Content must not flash, blink, or flicker more than three times per second (no exception, not even if it meets safety thresholds).

Success criterion 2.3.3 Animation from Interactions [2.1 and 2.2]

Level Level AAA, WCAG principle: Operable

Assigned to the following themes: SENSORY

Animations triggered by interaction (e.g. on click, hover, tap) must be possible to:

• disable through system settings (e.g. "reduce motion"), or
• turn off using a site-level option.