ΔE 15.0, fair: the same colour family, but not a straight swap. Blushing Rose is noticeably darker, cooler than Agate Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Blushing Rose is noticeably darker, cooler than Agate Skin.
The same difference applies the other way round: Agate Skin is noticeably lighter, 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 Agate Skin on the colour wheel See Blushing Rose on the colour wheel
All matches: Agate Skin equivalents · Blushing Rose equivalents