ΔE 6.0, close: similar, with a visible difference side by side. Waaagh! Flesh is a little darker, warmer than Emerald Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Waaagh! Flesh is a little darker, warmer than Emerald Green.
The same difference applies the other way round: Emerald Green 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 Emerald Green on the colour wheel See Waaagh! Flesh on the colour wheel
All matches: Emerald Green equivalents · Waaagh! Flesh equivalents