ΔE 11.3, fair: the same colour family, but not a straight swap. Cream White is more muted, warmer than Dead Magenta.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Cream White is more muted, warmer than Dead Magenta.
The same difference applies the other way round: Dead Magenta is more saturated, 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 Dead Magenta on the colour wheel See Cream White on the colour wheel
All matches: Dead Magenta equivalents · Cream White equivalents