Dark Skin Wash vs Black Wash

How close are they?

ΔE 9.7, close: similar, with a visible difference side by side. Black Wash is a little darker, more muted than Dark Skin Wash.

Can I use Black Wash instead of Dark Skin Wash?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Black Wash is a little darker, more muted than Dark Skin Wash.

Can I use Dark Skin Wash instead of Black Wash?

The same difference applies the other way round: Dark Skin 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.