ΔE 7.0, close: similar, with a visible difference side by side. Emerald Scream is a little lighter, cooler than Wizards Orb.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Emerald Scream is a little lighter, cooler than Wizards Orb.
The same difference applies the other way round: Wizards Orb is a little darker, warmer.
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 Wizards Orb on the colour wheel See Emerald Scream on the colour wheel
All matches: Wizards Orb equivalents · Emerald Scream equivalents