Leather Brown vs Dark Flesh

How close are they?

ΔE 6.5, close: similar, with a visible difference side by side. Dark Flesh is more saturated, cooler than Leather Brown.

Can I use Dark Flesh instead of Leather Brown?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Dark Flesh is more saturated, cooler than Leather Brown.

Can I use Leather Brown instead of Dark Flesh?

The same difference applies the other way round: Leather Brown is more muted, 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.