I served 13 1/2 yrs in the Australian Army but sorry dont know the colour values (not my job) but a VERY quick google serch turned up these colours for the Armys vechiles:
Disruptive Pattern Paint Colours.
a. Camouflage Green - Olive Drab Lustreless. Used since November 1967;
b. Camouflage Brown - US Federal Standard 30219;
c. Black - US Federal Standard 37038.
I think your problem is that your looking for the Army whn you should be looking for thr RAAF
