Any body shop can make up a spray bomb that will be the same color. You will need to find the factory paint code on the car. Im not sure where it is in the redlines, in my sunfire it is on the bottom side of the spare tire cover.
If it is a metallic flake paint , they should be able to put the same percentage of flake in the paint, but it will still be hard to match as it is metallic and the flake sits differently due to paint conditions (amount of reducer, spray gun, air temperature).