Accessibility Color Contrast Chart. Enter a foreground and background color in rgb hexadecimal format e g fd3 or f7da39 or choose a color using the color picker. Wcag 2 0 level aa requires a contrast ratio of at least 4 5 1 for normal text and 3 1 for large text.
Tests by thierry tardif. Alpha design and julie deganutti. Use contrast analyzer link opens in a new window tools to help select the best text colors and backgrounds with sufficient contrast ratios.
This is where ted and the developers added the structure description of chart that could benefit screen reader users such as the chart type.
Screen reader unable to translate chart before accessibility. Web content accessibility guidelines wcag is developed by w3c wai the world wide web consortium web accessibility initiative with a goal of providing a single shared standard for web content accessibility. Tests by thierry tardif. Use color in conjunction with an additional way to denote important information.
