Bleached Strap Grey vs USAF Green

How close are they?

ΔE 9.3, close: similar, with a visible difference side by side. USAF Green is a little lighter, more saturated than Bleached Strap Grey.

Can I use USAF Green instead of Bleached Strap Grey?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). USAF Green is a little lighter, more saturated than Bleached Strap Grey.

Can I use Bleached Strap Grey instead of USAF Green?

The same difference applies the other way round: Bleached Strap 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.