Battlefield Brown vs Olive Grey

How close are they?

ΔE 11.9, fair: the same colour family, but not a straight swap. Olive Grey is a little lighter than Battlefield Brown.

Can I use Olive Grey instead of Battlefield Brown?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Olive Grey is a little lighter than Battlefield Brown.

Can I use Battlefield Brown instead of Olive Grey?

The same difference applies the other way round: Battlefield Brown 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.