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1.4.3 Contrast (Minimum) (AA)

Understanding 1.4.3 Contrast (Minimum) (AA)

Text must have a contrast ratio of at least 4.5:1 against its background colour. This makes content easier for everyone to read, but especially partially sighted people.

Requirements / What to do?

• Text (whether plain text or in an image) has a contrast ratio of at least 4.5:1 against its background colour.

Common mistakes

• Text does not have a contrast ratio of at least 4.5:1 against its background colour.

Useful resources

• TBC