Paraphrased: Text (including images of text) has a contrast ratio of at least 4.5:1 for "regular"; sized text and at least 3:1 for large scale text (at least 18pt / 24px, or bold and at least 14pt / 18.5px), unless the text is purely decorative.

Paraphrased: Text (including images of text) has a contrast ratio of at least 7:1 for "regular" sized text and at least 4.5:1 for large scale text (at least 18pt / 24px, or bold and at least 14pt / 18.5px), unless the text is purely decorative.

Paraphrased: The visual presentation of user interface components (their states – including focus indication – and boundaries) and graphical objects has a contrast ratio of at least 3:1 against adjacent colour(s).