ΔE 8.7, close: similar, with a visible difference side by side. Evergreen Fog is a little darker, cooler than Atlantic Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Evergreen Fog is a little darker, cooler than Atlantic Green.
The same difference applies the other way round: Atlantic Green is a little lighter, 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 Atlantic Green on the colour wheel See Evergreen Fog on the colour wheel
All matches: Atlantic Green equivalents · Evergreen Fog equivalents