ΔE 24.9, loose: different enough that you should pick on purpose. Quartz Magenta is noticeably lighter, more saturated, cooler than Wazdakka Red. They are different kinds of paint: Citadel Wazdakka Red is an opaque base/layer paint and Green Stuff World Quartz Magenta is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Quartz Magenta is noticeably lighter, more saturated, cooler than Wazdakka Red. They are different kinds of paint.
The same difference applies the other way round: Wazdakka Red is noticeably 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 Wazdakka Red on the colour wheel See Quartz Magenta on the colour wheel
All matches: Wazdakka Red equivalents · Quartz Magenta equivalents