ΔE 7.7, close: similar, with a visible difference side by side. Zombie Flesh is a little lighter than Werewolf Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Zombie Flesh is a little lighter than Werewolf Brown.
The same difference applies the other way round: Werewolf Brown is a little darker.
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 Werewolf Brown on the colour wheel See Zombie Flesh on the colour wheel
All matches: Werewolf Brown equivalents · Zombie Flesh equivalents