Hi TnTony
This should be what you are looking for. From what I can make out on the lower panels box on your build sheet, you have color combination 107, as it appears you can make out the first 3 letters.... Roa.
This info is from the Lasalle, Cadillac's Companion Car Book. Good luck with your restoration, we are just over 4 years into our 1930 Lasalle restoration.