Battle Mud Wash vs Black Wash

How close are they?

ΔE 15.5, loose: different enough that you should pick on purpose. Black Wash is a little darker, more muted than Battle Mud Wash.

Can I use Black Wash instead of Battle Mud Wash?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Black Wash is a little darker, more muted than Battle Mud Wash.

Can I use Battle Mud Wash instead of Black Wash?

The same difference applies the other way round: Battle Mud Wash is a little lighter, more saturated.

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.