According to the ADR (Australian Design Rules) all forward facing lights MUST be white except for the indication lamps and clearance lamps which must be amber.
The rear lights must be red for the brakes/park/clearance lights, amber for the indicators and white for the reverse lights.
You are also not allowed (in most states) to have more than 2 spotlights and 2 foglights which must face foward.
The use of any blue light is solely the use of POLICE cars and you might find a hefty fine for using any type or near type (i.e green) of colour on your car. If you get a nice copper he may even book you for impersonating a cop car or something like that.
So basically there are but hay give it a go......then let us know how much it cost you for the fines.
Sorry not trying to rain on you but I got a good fine for having green clearance lights on the top of my 4wd and of cause the 4 11'spotlights on top......then again I should have let him stay on high beam,......he was a cop.....he does not need to dip his lights if he does not want too,....shouldn't I.
I hope this helps but give your local main roads department a ring and find out for sure but I don't think I'll be too far of the mark. Let us know when you find out.
Kind regards GUY