ΔE 10.1, fair: the same colour family, but not a straight swap. Garnet Purple is a little lighter, more saturated, cooler than Murder Scene.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Garnet Purple is a little lighter, more saturated, cooler than Murder Scene.
The same difference applies the other way round: Murder Scene is a little darker, more muted, 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 Murder Scene on the colour wheel See Garnet Purple on the colour wheel
All matches: Murder Scene equivalents · Garnet Purple equivalents