Additional information about this tool is available on our Color contrast on Websites page. This makes it particularly useful for checking colors in various applications, including documents or software, not just websites. TPGI’s Colour Contrast Analyser is a downloadable application for both Windows and Mac that enables you to check the contrast of any two colors from your computer screen. Given this limitation, it is important to review color contrast in the document’s authoring software before exporting or saving it as a PDF. However, this results only in a warning that color contrast must be reviewed manually. Attachment column arrow image representing sort order (up is ascending, down is descending, and up/down is unsorted. Developed by the Web Accessibility Tools Consortium. For an overview of the “Check Accessibility” feature, see our Checking Microsoft Office for Accessibility page.Īdobe Acrobat’s built-in Accessibility Checker includes an option “Document has appropriate color contrast” that can be toggled on/off with a checkbox. The answer will depend on whether your features have warm or cool undertones. Web Accessibility Toolbar (WAT) adds a toolbar to Internet Explorer to aid manual inspection of accessibility related elements on web pages. Follow the prompts within the Inspection Results to increase the contrast. The “Check Accessibility” feature built into Microsoft Office will flag “Hard-to-read text contrast” if the ratio of the text and the background falls below a certain threshold. For an overview of this issue, see Color Contrast in our IT Accessibility Checklist. Contrast is the difference in luminance or colour that makes an object visible on a background of different luminance or color.
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