Nurgling Green vs Bog Moss

How close are they?

ΔE 9.1, close: similar, with a visible difference side by side. Bog Moss is more saturated, warmer than Nurgling Green.

Can I use Bog Moss instead of Nurgling Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Bog Moss is more saturated, warmer than Nurgling Green.

Can I use Nurgling Green instead of Bog Moss?

The same difference applies the other way round: Nurgling Green is 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.