ΔE 27.0, loose: different enough that you should pick on purpose. Antique Rose is a little darker, more muted, warmer than Fairy Pink.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 27). Antique Rose is a little darker, more muted, warmer than Fairy Pink.
The same difference applies the other way round: Fairy Pink is a little lighter, 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 Fairy Pink on the colour wheel See Antique Rose on the colour wheel
All matches: Fairy Pink equivalents · Antique Rose equivalents