Underhive Ash vs USAAF Light Gray

How close are they?

ΔE 5.0, very close: most people won’t see a difference side by side. USAAF Light Gray is a little lighter, cooler than Underhive Ash.

Can I use USAAF Light Gray instead of Underhive Ash?

Yes, for most jobs. Very close match (ΔE 5). USAAF Light Gray is a little lighter, cooler than Underhive Ash.

Can I use Underhive Ash instead of USAAF Light Gray?

The same difference applies the other way round: Underhive Ash is a little darker, warmer.

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.