ΔE 58.9, loose: different enough that you should pick on purpose. Vomit is noticeably lighter, warmer than Red Ecstasy.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 59). Vomit is noticeably lighter, warmer than Red Ecstasy.
The same difference applies the other way round: Red Ecstasy 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 Red Ecstasy on the colour wheel See Vomit on the colour wheel
All matches: Red Ecstasy equivalents · Vomit equivalents