WCAG version: 2.0
Collection of success criterion published in WCAG version 2.0 in 2008.
1.3.1 Info and Relationships
Information or relationships between content that is visual is also conveyed through the code, via HTML or ARIA (for example the for attribute on a form label, or aria-describedby on an input that has hint text).
1.3.2 Meaningful Sequence
The visual presentation of the content matches what’s read out by a screen reader.
1.3.3 Sensory Characteristics
Nothing is referred to just by its color, size, position, shape, and so on.
1.4.1 Use of Color
Color must not be the only thing used to convey meaning.
1.4.2 Audio Control
Auto playing audio that lasts more than 3 seconds can be turned down or stopped.
1.4.3 Contrast (Minimum)
Text has a contrast ratio of 4.5 to 1. Large text can be a 3 to 1 ratio if it’s over 24px, or bold and over 19px.
1.4.4 Resize Text
Text can be resized up to 200% without loss of content or functionality, except for captions and images of text.
1.4.5 Images of Text
Text is actual text; not images of text.
1.4.6 Contrast (Enhanced)
Text has a contrast ratio of 7:1 to 1. Large text can be a 4.5 to 1 ratio if it’s over 24px, or bold and over 19px.
1.4.7 Low or No Background Audio
For spoken audio content, any background noise or music is 20 decibels lower than the foreground speech.
