ΔE 15.0, loose: different enough that you should pick on purpose. Skarsnik Green is noticeably lighter, warmer than Greenskin.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Skarsnik Green is noticeably lighter, warmer than Greenskin.
The same difference applies the other way round: Greenskin is noticeably darker, 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 Skarsnik Green on the colour wheel
All matches: Greenskin equivalents · Skarsnik Green equivalents