Well in Australia, the law is soo *beep* hush, they don't allow any color lights on your car, accept white (driving lights, reverse), red (parks, Brakes) and orange (indicators).
I had blue neons under my car, and Hey - I got a *beep* ticket for AUS $300, plus a warning. My buddy has blue lights in his windscreen washers on his bonnet, they gave him a AUS $ 200 fine plus a point of his license.
Apperently, this causes a distraction for other drivers.
Now I hear they thinking about making bodykits illegal and not allowed any chrome/ high polished mags on your vehicle - cause this is a cause of distraction from the dumb road duringthe day!!!
Aussie Sucks :(