Pacific Green vs Necrotic Flesh

How close are they?

ΔE 7.7, close: similar, with a visible difference side by side. Necrotic Flesh is more muted than Pacific Green.

Can I use Necrotic Flesh instead of Pacific Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Necrotic Flesh is more muted than Pacific Green.

Can I use Pacific Green instead of Necrotic Flesh?

The same difference applies the other way round: Pacific Green is more saturated.

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.