ΔE 9.2, close: similar, with a visible difference side by side. Warboss Green is a little lighter, more muted than Greenskin.
✓ Herrick Games paint comparison chart lists these two as equivalents.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Warboss Green is a little lighter, more muted than Greenskin.
The same difference applies the other way round: Greenskin is a little darker, more saturated.
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 Warboss Green on the colour wheel
All matches: Greenskin equivalents · Warboss Green equivalents