ΔE 13.2, fair: the same colour family, but not a straight swap. Camouflage Green is more muted, cooler than Elfwood Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Camouflage Green is more muted, cooler than Elfwood Brown.
The same difference applies the other way round: Elfwood Brown is 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 Elfwood Brown on the colour wheel See Camouflage Green on the colour wheel
All matches: Elfwood Brown equivalents · Camouflage Green equivalents