![]() For normal text, the AA color contrast ratio is 4.5:1 and for AAA the color contrast ratio is 7:1.įor more information about WCAG 2. text which is above 18pt or larger), the minimum AA color contrast ratio is 3:1 and for AAA the ratio is 4.5:1. WCAG 2.1 accessibility guidelines have three levels of compliance, A, AA and AAA. + Generate a report that can be shared using SMS, Email or Notes. + Verify that the color contrast between two colors is sufficient to pass WCAG 2.1 accessibility guidelines / Section 508. For automated tests, turn on accessibility checking in Espresso and Robolectric.Color Contrast is a tool to measure the contrast between two colors in a screenshot or mobile website, helping ensure your app meets the internationally recognized recommendations in the Web Content Accessibility Guidelines (WCAG).Ĭolor Contrast has the following features: Consider using Accessibility Scanner for Android for manual testing of your app on-device. If the contrast ratio is less than that defined by W3C guidelines, the interface might benefit from increased color contrast.Īndroid's automated testing tools can detect many color contrast issues.Use a contrast ratio calculator to determine the contrast ratio of adjacent colors.Using image viewing or editing software, use an "eyedropper tool" to extract an apparent sample of colors from the screenshot.To manually check color contrast in an app: ![]()
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