Underbelly Blue vs Wolf Grey

How close are they?

ΔE 7.8, close: similar, with a visible difference side by side. Wolf Grey is a little lighter than Underbelly Blue.

Can I use Wolf Grey instead of Underbelly Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Wolf Grey is a little lighter than Underbelly Blue.

Can I use Underbelly Blue instead of Wolf Grey?

The same difference applies the other way round: Underbelly Blue is a little darker.

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.