ΔE 10.5, fair: the same colour family, but not a straight swap. Steel Legion Drab is more muted, warmer than IJN M3 (N) Nakajima Interior Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Steel Legion Drab is more muted, warmer than IJN M3 (N) Nakajima Interior Green.
The same difference applies the other way round: IJN M3 (N) Nakajima Interior Green is more saturated, 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 IJN M3 (N) Nakajima Interior Green on the colour wheel See Steel Legion Drab on the colour wheel
All matches: IJN M3 (N) Nakajima Interior Green equivalents · Steel Legion Drab equivalents