Who is the paint supplier that chevy uses?

I have a 96 Z28. It is bright red and the paint code is 81. My question is, Am I only going to be able to purchase this paint from Chevy? The second Question is who does Chevy use to produce the paint they use and can I contact them directly?|||DuPont, PPG and BASF are the 3 paint providers, any reputable automotive paint supply will be able to match your paint code via computer which is very accurate .