ΔE 21.2, loose: different enough that you should pick on purpose. Peach Skin is a little lighter, warmer than Rosy Skin.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Peach Skin is a little lighter, warmer than Rosy Skin.
The same difference applies the other way round: Rosy Skin is a little darker, cooler.
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 Rosy Skin on the colour wheel See Peach Skin on the colour wheel
All matches: Rosy Skin equivalents · Peach Skin equivalents