ΔE 24.3, loose: different enough that you should pick on purpose. Light Violet is noticeably darker, cooler than Cold Pink.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Light Violet is noticeably darker, cooler than Cold Pink.
The same difference applies the other way round: Cold Pink 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 Cold Pink on the colour wheel See Light Violet on the colour wheel
All matches: Cold Pink equivalents · Light Violet equivalents