Use our free Color Contrast to wCAG checker. All calculations and processing are performed directly in your browser for maximum privacy and speed. No data is sent to any server, and no information is stored or logged. No account or signup required — just open the tool and get started instantly.
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Yes, Color Contrast is fully responsive and works on all devices including smartphones, tablets, laptops, and desktops. It works in any modern browser including Chrome, Firefox, Safari, and Edge.