I had correct color chip charts from several companies while searching for a match on my Aero. The only one useful to anyone was Ditzler chip numbers (pittsburg paint & glass), PPG. The only company that nailed my color was
http://www.autocolorlibrary.com/ Not only that, Jimmy also absolutely nailed my dash colors with some info that nobody had, even here.
Choices are lacquer, enamel, acrylic, PPG in base clear and their house brand Restoration base clear, which is a good value and laid down beautiful.
Even if you're not paint shopping,the vid down the page on that link is interesting to watch.