ΔE 30.6, loose: different enough that you should pick on purpose. Pink is noticeably lighter, warmer than Medium Violet.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 31). Pink is noticeably lighter, warmer than Medium Violet.
The same difference applies the other way round: Medium Violet is noticeably darker, 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 Medium Violet on the colour wheel See Pink on the colour wheel
All matches: Medium Violet equivalents · Pink equivalents