I'd recommend buying a spare set and having them painted so you have two sets. Bring them and the car to a good body shop and they'll color match it perfectly with the computer, the days of colors being "off" are long gone.
The biggest issue isn't the color match, btw...it's getting a factory smooth finish, typically the easiest way to tell a repainted panel is the dreaded orange peel, the even more dreaded sanding marks and swirls to remove same, and the small imperfections that get lodged in the finish when it's wet. Choose well, don't just shop price or based on color match, look over their finished work carefully. There's nothing worse than a bad paint job.
What color is your car?
