ΔE 13.1, fair: the same colour family, but not a straight swap. Athena Skin is a little lighter, cooler than Cadian Fleshtone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Athena Skin is a little lighter, cooler than Cadian Fleshtone.
The same difference applies the other way round: Cadian Fleshtone is a little darker, 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.
See Cadian Fleshtone on the colour wheel See Athena Skin on the colour wheel
All matches: Cadian Fleshtone equivalents · Athena Skin equivalents