ΔE 10.1, fair: the same colour family, but not a straight swap. Sunny Skin Tone is a little darker, more saturated than Pastel Peach.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Sunny Skin Tone is a little darker, more saturated than Pastel Peach.
The same difference applies the other way round: Pastel Peach is a little lighter, 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 Pastel Peach on the colour wheel See Sunny Skin Tone on the colour wheel
All matches: Pastel Peach equivalents · Sunny Skin Tone equivalents