Back about 20 years ago when I was restoring gas pumps, I found a paint store that still had paint books with codes for colors going way back. I asked them if I could look through the old books.
I can't remember what oil companies codes I was looking for, but I do remember, that if the color was blue, there was a code for:
1. Inside of the station
2. Outside of the station
3. The poumps.
4. The pumps going to Ohio or any state you they covered.
5. The tankers
For most large oil companies there could be as many as 10 different blues that they used.
If you pick one of these, paint the pump, then put the decals on, generally the blue on the decal will not match the color you used on the pump. This is why we suggest, go to a paint store, take the decals with you, have them match the blue on the decal. If they don't have the equipment to do this, find a paint store that does.
Author, Gas Pump Identfication books 1st & 2nd Editions & Air Meter Identification books
We rebuild ECO air meters and sell parts.