ΔE 8.2, close: similar, with a visible difference side by side. Dark Green (IJA) is more saturated, warmer than Evergreen Fog.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Dark Green (IJA) is more saturated, warmer than Evergreen Fog.
The same difference applies the other way round: Evergreen Fog is more muted, 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 Evergreen Fog on the colour wheel See Dark Green (IJA) on the colour wheel
All matches: Evergreen Fog equivalents · Dark Green (IJA) equivalents