Stormcover Grey vs USAF Green

How close are they?

ΔE 8.4, close: similar, with a visible difference side by side. USAF Green is a little lighter, more saturated than Stormcover Grey.

Can I use USAF Green instead of Stormcover Grey?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). USAF Green is a little lighter, more saturated than Stormcover Grey.

Can I use Stormcover Grey instead of USAF Green?

The same difference applies the other way round: Stormcover Grey is a little darker, 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.