ΔE 6.9, close: similar, with a visible difference side by side. Leather Brown is a little lighter, warmer than Dark Skin.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Leather Brown is a little lighter, warmer than Dark Skin.
The same difference applies the other way round: Dark Skin is a little darker, 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.
See Dark Skin on the colour wheel See Leather Brown on the colour wheel
All matches: Dark Skin equivalents · Leather Brown equivalents