ΔE 8.5, close: similar, with a visible difference side by side. Kasrkin Green is cooler than Necrotic Flesh.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Kasrkin Green is cooler than Necrotic Flesh.
The same difference applies the other way round: Necrotic Flesh is 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 Necrotic Flesh on the colour wheel See Kasrkin Green on the colour wheel
All matches: Necrotic Flesh equivalents · Kasrkin Green equivalents