LOGOTYPES: Text that is part of a logo or brand name has no minimum contrast requirement."įor more detailed information, visit W3C Web Accessibility Initiative, How to Meet WCAG 2. INCIDENTAL: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement. LARGE TEXT: Large-scale text and images of large-scale text have a contrast ratio of at least 3:1 The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following: (Level AA) Web Content Accessibility Guidelines (WCAG) 2.0 Excerpt Cut and paste it into a Color Contrast Analyzer.Ĭolor Contrast Analyzer for Chrome browserĪnalyze text color contrast on a webpage or opened image file according to the WCAG 2 text color contrast requirements. Alternatively, Colour Contrast Analyser is a free. With ColorZilla you can get a color reading from any point in your browser. Tools such as Chrome/Firefox browser extensions and Microsoft Paint can help in determining colour values. To use it, do the following: CCA has two eyedroppers one to sample foreground colours and one to sample background colours. Colour Contrast Analyser will provide the correct results. As a result, it can be used to test any kind of digital content, including web pages, Word documents, PDFs, etc. The WAVE Chrome and Firefox extensions allow you to evaluate web content for accessibility. Color Contrast Analyzer for Google Chrome Share Overview Analyze a web page or portion of a web page for conformance with WCAG 2.0 Color Contrast requirements. Tools for Color Contrast Testing for Accessibility The TPGi Colour Contrast Analyser (CCA) can be used to sample any colours you can see on your screen. Note that black is #000000 and white is #ffffff. That color can then be entered into a contrast checker to see if the contrast ratio is 4.5:1 or more. One method to determine if your text has sufficient contrast is to view your image using a Firefox or Chrome browser that has the Colorzilla add-on which will display the color of any pixel beneath the user's cursor. An excerpt is shown in the right sidebar here. MDH uses level AA criteria described in the Web Content Accessibility Guidelines (WCAG) 2.0. Colour Contrast Checker is simple to use, providing you with a streamlined option for creating the perfect color combinations for whatever project is at hand. This action will be of use if you see a color combo on a site and wish to replicate it. Some people with low vision require text to meet a certain contrast threshold in order to read our content adequately. Colour Contrast Checker also includes a way to hone in on a specific color for a given site. Black on white or white on black reach the highest level of contrast. Text legibility is optimum when its color contrast is dramatic.
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