Unlike cars, I don't think a caravan has a colour code I had to go to an Auto shop to get a near match for mine.
Alternative if they are still going contact Fleetwood
Fleetwood Caravans
Hall Street
Long Melford
Suffolk
CO10 9JP
01787 378705
Whatever you will also need a laquer spray for protection coat it after, which helps preventing weathering and give it a good shine.
Bob
March 2010