ΔE 19.7, loose: different enough that you should pick on purpose. Velvet Red is a little darker, warmer than Garnet Purple.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Velvet Red is a little darker, warmer than Garnet Purple.
The same difference applies the other way round: Garnet Purple is a little 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 Garnet Purple on the colour wheel See Velvet Red on the colour wheel
All matches: Garnet Purple equivalents · Velvet Red equivalents