ΔE 10.0, close: similar, with a visible difference side by side. Malefic Flesh is a little lighter, more saturated, warmer than Ashen Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Malefic Flesh is a little lighter, more saturated, warmer than Ashen Brown.
The same difference applies the other way round: Ashen Brown is a little darker, 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 Ashen Brown on the colour wheel See Malefic Flesh on the colour wheel
All matches: Ashen Brown equivalents · Malefic Flesh equivalents