Olive Drab Base vs Mortarion Grime

How close are they?

ΔE 4.7, very close: most people won’t see a difference side by side. Mortarion Grime is a little lighter than Olive Drab Base. They are different kinds of paint: AK Interactive Olive Drab Base is an opaque base/layer paint and Citadel Mortarion Grime is a wash/shade, so they won’t behave the same on the model even where the colour is close.

Can I use Mortarion Grime instead of Olive Drab Base?

Yes, for most jobs. Very close match (ΔE 5). Mortarion Grime is a little lighter than Olive Drab Base. They are different kinds of paint.

Can I use Olive Drab Base instead of Mortarion Grime?

The same difference applies the other way round: Olive Drab Base is a little darker.

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.