Skrag Brown vs Middle Brown

How close are they?

ΔE 8.3, close: similar, with a visible difference side by side. Middle Brown is a little darker than Skrag Brown.

Can I use Middle Brown instead of Skrag Brown?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Middle Brown is a little darker than Skrag Brown.

Can I use Skrag Brown instead of Middle Brown?

The same difference applies the other way round: Skrag Brown is a little lighter.

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.