studio-web
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Color contrast ratio

Studio Web User Guide
Last updated Aug 6, 2025
Color contrast ratios represent the difference in brightness of the colors in your app when represented on a computer display. Selecting an adequate contrast ratio makes your app interface more readable, especially to users with moderately low vision acuity.
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The color contrast ratio between text color and background color in your app must be at least 4.5:1.
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Large-scale text, or images containing large-scale text must have a contrast ratio of at least 3:1.
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For more details on accessibility standards concerning color contrast, refer to WCAG 2.2.