ΔE 6.2, close: similar, with a visible difference side by side. Frozen Flesh is a little lighter, cooler than Cocoa Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Frozen Flesh is a little lighter, cooler than Cocoa Brown.
The same difference applies the other way round: Cocoa Brown is a little darker, warmer.
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 Cocoa Brown on the colour wheel See Frozen Flesh on the colour wheel
All matches: Cocoa Brown equivalents · Frozen Flesh equivalents