ΔE 19.1, loose: different enough that you should pick on purpose. Hot Pink is noticeably lighter, much more muted than Pixie Pink.
✓ Two Thin Coats comparison chart lists these two as equivalents.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Hot Pink is noticeably lighter, much more muted than Pixie Pink.
The same difference applies the other way round: Pixie Pink is noticeably darker, much more saturated.
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 Pixie Pink on the colour wheel See Hot Pink on the colour wheel
All matches: Pixie Pink equivalents · Hot Pink equivalents