ΔE 14.7, fair: the same colour family, but not a straight swap. Peacock is noticeably lighter, more saturated, warmer than Azure Magic.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Peacock is noticeably lighter, more saturated, warmer than Azure Magic.
The same difference applies the other way round: Azure Magic is noticeably darker, more muted, 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 Azure Magic on the colour wheel See Peacock on the colour wheel
All matches: Azure Magic equivalents · Peacock equivalents