I tried googling what color this truck was but had no luck. I believe it is a 1950 for f100 any help appreciated. picture in post below
http://images.classiccars.com/classifieds/105757_788576_1950_Ford_12%2BTon%2BPickup.jpg click this link to see color
assuming it's stock?????????? do a search for "auto colour library" there have been posts here in the past.
It is kind of what green looks like to me. Ford used a color called hunter green in that time frame, maybe that is what it is.
Lighting is part of the challenge when trying to figure this stuff out. You need to have both the truck and the paint chip in the same place when you take the picture. Good luck....