It is called Olive Drab. Australian Army Paint (vehicle has New south wales plates)
Product Code Desc'
516-31087 Gloss Olive Drab
516-31256 Semi Gloss Olive Drab
516-31088 Lusterless Olive Drab - this is the exact colour
The exact paint is made by Wattyl, you'll have to get somethign similar mixed up here, but at least you have the codes now.