Olive Green vs Death Guard Green

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. Death Guard Green is more muted, cooler than Olive Green.

Can I use Death Guard Green instead of Olive Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Death Guard Green is more muted, cooler than Olive Green.

Can I use Olive Green instead of Death Guard Green?

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