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