ΔE 11.0, fair: the same colour family, but not a straight swap. Deep Khaki Drill is a little lighter, cooler than Ochre Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Deep Khaki Drill is a little lighter, cooler than Ochre Green.
The same difference applies the other way round: Ochre Green is a little darker, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Ochre Green on the colour wheel See Deep Khaki Drill on the colour wheel
All matches: Ochre Green equivalents · Deep Khaki Drill equivalents