US Desert Tan vs Barbarian Skin

How close are they?

ΔE 6.7, close: similar, with a visible difference side by side. Barbarian Skin is a little darker than US Desert Tan.

Can I use Barbarian Skin instead of US Desert Tan?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Barbarian Skin is a little darker than US Desert Tan.

Can I use US Desert Tan instead of Barbarian Skin?

The same difference applies the other way round: US Desert Tan 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.