1.4.3 Contrast (Minimum)

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Success criterion 1.4.3 Contrast (Minimum): The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following: (Level AA)

  • Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 3:1;
  • Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.
  • Logotypes: Text that is part of a logo or brand name has no minimum contrast requirement.


Which elements / situations are tested?

Expert input

Are there other text on the page that do not meet the required contrast of success criterion 1.4.3?

Open questions

  • Contrast of links: Should links meet the contrast requirement in all states, any one state or at least the initial state?