Where, if anywhere can I buy factory paint for my camaro. I had an atttident earlier today, my fault just being in a hurry I backed into my garage

I have the 45th anniv. edition. On the back bumper and truck lip now have white lines. If you can picture this, above and below the license plate where it kind of stucks out from there about 2 foot each direction about the width of a penny. I would only need a pint of paint to fix it, have paint gun and everything needed, have restored cars before, but I gotta make sure it matches my car.
thanks for your help