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