ΔE 7.8, close: similar, with a visible difference side by side. Straken Green is a little lighter, more saturated, cooler than Army Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Straken Green is a little lighter, more saturated, cooler than Army Green.
The same difference applies the other way round: Army Green is a little darker, more muted, 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 Army Green on the colour wheel See Straken Green on the colour wheel
All matches: Army Green equivalents · Straken Green equivalents