11/20/2023 0 Comments Color contrast analyser online![]() 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. In case of these colors are defined with RGBA values, it also. It evaluates the contrast on all elements of the page considering their computed style for the color and background-color CSS properties. However, this results only in a warning that color contrast must be reviewed manually. Checks for compliance with the contrast levels of foreground and background colors combination based on the requirements of WCAG 2.1. 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. 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. Guideline 1.4.6: Contrast (Enhanced) The visual presentation of text and images of text has a contrast ratio of at least 7:1, except for the following: (Level AAA) Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 4.5:1 Incidental: Text or images of text that are part of an inactive user interface. For an overview of this issue, see Color Contrast in our IT Accessibility Checklist.
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