guideline: Distinguishable
Create content that’s easy to see and hear.
WCAG 2.0, 2.1, 2.2
Level AA
1.4.11 Non-text Contrast
Usable components like form fields and buttons, and graphics like pie charts and line graphs must have a contrast ratio of 3 to 1.
WCAG 2.0, 2.1, 2.2
Level AA
1.4.12 Text Spacing
Users can increase letter, word, line, and paragraph spacing without cutting off content or breaking functionality.
WCAG 2.0, 2.1, 2.2
Level AA
1.4.13 Content on Hover or Focus
Tooltips and similar content should stay visible, be easy to dismiss (usually with the Esc key), and let users select and interact with the text.
