ΔE 10.1, fair: the same colour family, but not a straight swap. US Olive Drab is a little darker, more muted, cooler than Death Korps Drab.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). US Olive Drab is a little darker, more muted, cooler than Death Korps Drab.
The same difference applies the other way round: Death Korps Drab is a little lighter, more saturated, 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 Death Korps Drab on the colour wheel See US Olive Drab on the colour wheel
All matches: Death Korps Drab equivalents · US Olive Drab equivalents