I've made a few. And most others that I've seen are passable for the school colors. When using mica powders, the pearl effect will have several color variations. And most don't care if the match is exact.
Using dye for a solid color is another matter. Mixing dyes to get the exact color is harder than it sounds. So there is some trial & error that goes into mixing something that you're trying to match.
So, are you trying for Auburn or Alabama? :wink: