ΔE 13.0, fair: the same colour family, but not a straight swap. Alizarin Green is a little lighter, more saturated, warmer than Greenskin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Alizarin Green is a little lighter, more saturated, warmer than Greenskin.
The same difference applies the other way round: Greenskin is a little darker, 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 Greenskin on the colour wheel See Alizarin Green on the colour wheel
All matches: Greenskin equivalents · Alizarin Green equivalents