ΔE 7.3, close: similar, with a visible difference side by side. Battledress Brown is a little darker than Noble Skin.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Battledress Brown is a little darker than Noble Skin.
The same difference applies the other way round: Noble Skin 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.
See Noble Skin on the colour wheel See Battledress Brown on the colour wheel
All matches: Noble Skin equivalents · Battledress Brown equivalents