ΔE 7.2, close: similar, with a visible difference side by side. Green Grey is a little darker, more muted than Dark Green Nakajima.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Green Grey is a little darker, more muted than Dark Green Nakajima.
The same difference applies the other way round: Dark Green Nakajima 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 Dark Green Nakajima on the colour wheel See Green Grey on the colour wheel
All matches: Dark Green Nakajima equivalents · Green Grey equivalents