ΔE 16.4, loose: different enough that you should pick on purpose. Crimson Magenta is noticeably darker, cooler than Violet Sunset.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Crimson Magenta is noticeably darker, cooler than Violet Sunset.
The same difference applies the other way round: Violet Sunset 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 Violet Sunset on the colour wheel See Crimson Magenta on the colour wheel
All matches: Violet Sunset equivalents · Crimson Magenta equivalents