Contrast ratio
Also written: contrast
How much brighter one color is than another, from 1:1 to 21:1. WCAG asks for at least 4.5:1 for normal text and 3:1 for large text and chart lines or bars.
Also written: contrast
How much brighter one color is than another, from 1:1 to 21:1. WCAG asks for at least 4.5:1 for normal text and 3:1 for large text and chart lines or bars.