Light Gray vs USAF Light Gray

How close are they?

ΔE 5.8, very close: most people won’t see a difference side by side. USAF Light Gray is a little darker, more saturated than Light Gray.

✓ AMMO ATOM user guide chart lists these two as equivalents.

Can I use USAF Light Gray instead of Light Gray?

Yes, for most jobs. Very close match (ΔE 6). USAF Light Gray is a little darker, more saturated than Light Gray.

Can I use Light Gray instead of USAF Light Gray?

The same difference applies the other way round: Light 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.