The solution is to add the color elsewhere in the set. Exodar Doublet (although a slightly darker shade of purple) might work for you (presuming you keep a tabard on), or if you have it, the Ogri'la Tabard.
I'll be honest, I'm not a big fan of the shoulders. They look ok on NElf females, but on Draenei they don't match well. Haven't found anything else suitable tho :/The shoulders look great on female characters, but they get pretty bulky on male characters, haha... =P
Some people are so badass they'll gimp their dps just to look coll!