The GM Heritage center website is under going revisions and the Vehicle Info Kits that used to be downloadable aren't currently available. But if you need one I can email one to you.
But up through 55.1 there was no tie of serial number to paint color. I don't think that came into practice till quite a bit later, like in the '70's. The Info Kits thru 55.1 just list the available colors. As and example I just browsed thru the '72 Vehicle Info Kit and it doesn't even have the color chart or names.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.