We need a way to save and reuse the colors of various items, so it would make color coordinating things easier. The current system is very fiddly trying to get multiple items as close as possible to each other in color.
Trying to match outfit/CAST parts to accessories that have a fixed color is tricky, but trying to match multiple weapons, a unit set, and camos on top of that can be a real pain when going for a specific theme or style.