If you wish to use my Nemesis LCARS from PDW Excelsior bridge then go ahead, colors for them were taken straight from screencaps and are as accurate as possible ;)
They looks awesome, especially Voy Excelsior ;) I don't think that there were any purple parts in Nem LCARS... only multiple shades of blue/yellow/orange and there were also (but very rare) white/grey/green/brown.