ΔE 21.0, loose: different enough that you should pick on purpose. Sunset Red is a little lighter, cooler than Quinacridone Violet.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Sunset Red is a little lighter, cooler than Quinacridone Violet.
The same difference applies the other way round: Quinacridone Violet is a little darker, 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 Quinacridone Violet on the colour wheel See Sunset Red on the colour wheel
All matches: Quinacridone Violet equivalents · Sunset Red equivalents