ΔE 26.0, loose: different enough that you should pick on purpose. Nude Skin is a little darker, much more saturated than Ashen Stone.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Nude Skin is a little darker, much more saturated than Ashen Stone.
The same difference applies the other way round: Ashen Stone is a little lighter, much more muted.
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 Ashen Stone on the colour wheel See Nude Skin on the colour wheel
All matches: Ashen Stone equivalents · Nude Skin equivalents