Any decent automobile paint supplier can match any color you want. The only problem you might encounter is that they won't want to sell you less than a quart. They can however mix a pint so you might have to sweet talk them. Can't find a paint supplier? Call any good auto body shop and they will refer you to a good place. I recommend Dupont Imron epoxy but it's expensive. I would not buy enamel because I think fuel will eat it up. Acrylic lacquer is probably your second best choice. If you are stuck with enamel you could clear coat it with fuel proof paint.

Bill