Contrast Ratio

Contrast Ratio

Contrast Ratio is the difference in brightness between two colors, like text and its background, and is very important for making sure everyone can read and understand information on screens or printed materials. For designers, using a higher contrast ratio helps people with different vision abilities see content more clearly, especially in low light or for those with color vision differences. A simple way to check if a design is easy to read is to use color combinations that create a strong difference in lightness, which can be measured using tools that give a numerical value for contrast ratio. This value helps designers know if their color choices meet common guidelines for readability.

accessibility design readability color contrast vision inclusive design visual clarity user experience

— Kevin Green