ΔE 5.9, very close: most people won’t see a difference side by side. Dark Green 2 (RAF) is a little darker, more muted than Army Green.
Yes, for most jobs. Very close match (ΔE 6). Dark Green 2 (RAF) is a little darker, more muted than Army Green.
The same difference applies the other way round: Army Green is a little lighter, 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 Army Green on the colour wheel See Dark Green 2 (RAF) on the colour wheel
All matches: Army Green equivalents · Dark Green 2 (RAF) equivalents