Where do you find the color code?

[curbyk]

My brother who is doing the body and paint work for me has checked the code in the glove box which is "4544AD White/Red" and no one can find the number. Since I wanted to keep the colors original and keep the match with the interior which does not need re-painting, I was hoping it was still available. Am I looking in the right place? 69 C10

Thanks for the past help and in advance for any new help.