The Web Content Accessibility Guidelines (WCAG) uses a figure known as the color contrast ratio to determine whether your chosen font and background colors meet the level of contrast that is considered acceptable. The Siteimprove C olor C ontrast C hecker is a n easy-to-use tool that helps you determine whether your website’s chosen font and background color s are accessible to pe ople with low vision and color def ic iencies. While having sufficient color contrast is necessary for accessibility reasons, it also makes content easier t o see and read for everyone, resulting in a better user experience for all visitors. Your website’s chosen color scheme should be accessible to people with color blindness, low vision, low c ontrast sensitivity, or other visual disabilities, who may not be able to adequately perceive certain color combinations. Choosing the wrong color combinations can make navigating and interacting with your site confusing or even impossible. For example, a yellow font on a white background is less perceivable to a user with low contrast vision than a white font on a black background. With respect to web accessibility, the right color contrast can determine whether user s with visual disabilities will be able to read your content or not. Color contrast is the difference in light between a font (or any other element) in the foreground and its background.
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