Middle Stone vs Baneblade Brown

How close are they?

ΔE 7.6, close: similar, with a visible difference side by side. Baneblade Brown is more muted, warmer than Middle Stone.

Can I use Baneblade Brown instead of Middle Stone?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Baneblade Brown is more muted, warmer than Middle Stone.

Can I use Middle Stone instead of Baneblade Brown?

The same difference applies the other way round: Middle Stone is more saturated, cooler.

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.