ΔE 10.5, fair: the same colour family, but not a straight swap. Light Drab is a little lighter, warmer than Ogre Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Light Drab is a little lighter, warmer than Ogre Green.
The same difference applies the other way round: Ogre Green is a little darker, cooler.
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 Ogre Green on the colour wheel See Light Drab on the colour wheel
All matches: Ogre Green equivalents · Light Drab equivalents