I asked my friend who regularly dyes her hair crazy colors which fades and which works best and yah. She professionally makes makeup and does that stuff she said

It all depends on your friend's hair chemistry. Pinks last really long in my hair but everything else fades quick. She can pretty much expect that with any semi permanent dye it's going to fade quick, all of the unnatural colors do. Teal, purple, and blue are all similar enough that they'll probably all fade the same.