Contrast and color use are important, as users must be able to perceive content on a page. You can use accessibility checkers to check for issues such as color contrast ratios. If you choose to use ...

Ensure sufficient contrast. Do not display important content using colour alone (e.g. colour legends for diagrams). The requirements for the use of colour and contrast are the only aspects of ...

An accessibility checker tool for validating the color contrast based on WCAG 2.0 and WCAG 2.1 standard. The formula (L1/L2) for contrast is based on [ISO-9241-3] and [ANSI-HFES-100-1988 ...