Hahaha, that would be way too simple! anyway, you cannot get anything matched on a RAL code in the US!
Follow Mike Starners recipy, with the small Revell/Humbrol modelling paint tins and you'll have the spot on colour!!
Khaki Green No. 3/ G3/ “Service Colour”
Mix: Revell 361+ 360 + 84 in ratios 12:5:7. Not easy but the only way yet. This is matched to two 1939 original equipment samples (one from Rik's 16H) and a replicated 1941 sample.
In use: 1938 – 42.