CDalton is a Chrome extension designed to assist colorblind users in identifying colors more easily. Developed by cdalton1903, this free add-on falls under the category of Browsers and specifically belongs to the Add-ons & Tools subcategory.

The extension adds a filter that adjusts the hue of web page elements, aiming to enhance color visibility for colorblind users. It offers filters for individuals with protanopia and tritanopia, as well as a feature that provides color names to the user. CDalton originated as a Final Course Project by CIMOL students.

The extension's code includes functions that select web page elements based on the color complications associated with different types of color blindness. It then applies a hue-rotate filter to modify the hue of these elements.