ΔE 19.7, loose: different enough that you should pick on purpose. Flesh Wash is a little lighter, more muted than Caspian Flesh Wash.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Flesh Wash is a little lighter, more muted than Caspian Flesh Wash.
The same difference applies the other way round: Caspian Flesh Wash is a little darker, 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.
See Caspian Flesh Wash on the colour wheel See Flesh Wash on the colour wheel
All matches: Caspian Flesh Wash equivalents · Flesh Wash equivalents