ΔE 13.6, fair: the same colour family, but not a straight swap. Army Green is much more muted than Jungle Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Army Green is much more muted than Jungle Green.
The same difference applies the other way round: Jungle Green is much more saturated.
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 Jungle Green on the colour wheel See Army Green on the colour wheel
All matches: Jungle Green equivalents · Army Green equivalents