ΔE 6.3, close: similar, with a visible difference side by side. Chocolate Brown is a little darker, more muted than African Shadow.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Chocolate Brown is a little darker, more muted than African Shadow.
The same difference applies the other way round: African Shadow is a little lighter, more saturated.
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 Chocolate Brown on the colour wheel
All matches: African Shadow equivalents · Chocolate Brown equivalents