Color Check for ADA image compliance Color Check in an interactive tool for validating web image compliance with ADA (Americans with Disabilities Act) contrast and readability standards. To run validation, upload an image and click on it to select two colors being compared. Use mouse scroll wheel to zoom in and out on uploaded image in preview window. This page is currently available only for desktop browsers.To use Color Check, please increase the width of your browser window. Drag and drop image to upload Reset colors r1 g1 b1 Background, RGB: Background, RGB 1 r2 g2 b2 Foreground, RGB: Background, RGB 2 Re-upload image Reset image scaling Result: Are colours compliant? Contrast Ratio: Ideally, contrast ratio should be higher than 7 Please note that PNGs with transparency can produce incorrect results.