Sorry, I guess I wasn't too clear. Feel free to copy a color from another car. My point was stick to colors that go with the motif of the car. Notice that all of the stock colors have an "antique" look to them (except black - how do you antique black?) Check out some Art Deco styling in decorator or architecture magazines. You'll see that they pull from a range of colors that have a certain feel to them.

So my point is that Art Deco colors will look "right" on an Art Deco car.