ΔE 9.1, close: similar, with a visible difference side by side. Russ. AF Dark Green is a little darker, more saturated than Graphite Gray.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Russ. AF Dark Green is a little darker, more saturated than Graphite Gray.
The same difference applies the other way round: Graphite Gray is a little lighter, more muted.
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 Graphite Gray on the colour wheel See Russ. AF Dark Green on the colour wheel
All matches: Graphite Gray equivalents · Russ. AF Dark Green equivalents