ΔE 12.8, fair: the same colour family, but not a straight swap. Peach Flesh is a little lighter, more muted, warmer than Rosy Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Peach Flesh is a little lighter, more muted, warmer than Rosy Skin.
The same difference applies the other way round: Rosy Skin is a little darker, more saturated, 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 Flesh on the colour wheel
All matches: Rosy Skin equivalents · Peach Flesh equivalents