Android L includes new display modes for color blind users

The colors used in a gadget UI often seem like an aesthetic choice alone. But for those with color blindness, it can mean the difference between being able to operate a device normally and having a frustrating time using a phone or tablet. Fortunately the next version of Android after KitKat, currently known as Android L, includes new display modes to help users with color vision deficiency to see things more clearly.

source: androidcentral