ColorCue is a free Chrome add-on designed to apply customizable color tint overlays to websites. This tool allows users to define specific URL patterns and assign a corresponding color, such as red for production environments. With this visual cue, users can easily distinguish between different site environments, reducing the risk of confusion while navigating the web.

The primary functionality of ColorCue revolves around its ability to enhance user experience by providing clear visual indicators. By applying these configurable tints, users can quickly identify the context of the website they are visiting, which is especially useful for developers and testers working across multiple platforms. Overall, ColorCue serves as a practical tool for anyone looking to improve their web browsing efficiency.