Battle of Marathon vs Flat Brown

How close are they?

ΔE 14.1, fair: the same colour family, but not a straight swap. Flat Brown is noticeably darker, cooler than Battle of Marathon.

Can I use Flat Brown instead of Battle of Marathon?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Flat Brown is noticeably darker, cooler than Battle of Marathon.

Can I use Battle of Marathon instead of Flat Brown?

The same difference applies the other way round: Battle of Marathon is noticeably lighter, 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.