ΔE 22.3, loose: different enough that you should pick on purpose. Permanent Maroon is noticeably darker, warmer than Moldy Wine.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Permanent Maroon is noticeably darker, warmer than Moldy Wine.
The same difference applies the other way round: Moldy Wine is noticeably lighter, 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 Moldy Wine on the colour wheel See Permanent Maroon on the colour wheel
All matches: Moldy Wine equivalents · Permanent Maroon equivalents