ΔE 6.7, close: similar, with a visible difference side by side. Chestnut Brown is a little darker, warmer than African Shadow.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Chestnut Brown is a little darker, warmer than African Shadow.
The same difference applies the other way round: African Shadow is a little lighter, 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 African Shadow on the colour wheel See Chestnut Brown on the colour wheel
All matches: African Shadow equivalents · Chestnut Brown equivalents