Emerald Green vs Wizards Orb

How close are they?

ΔE 7.9, close: similar, with a visible difference side by side. Wizards Orb is a little lighter than Emerald Green.

Can I use Wizards Orb instead of Emerald Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Wizards Orb is a little lighter than Emerald Green.

Can I use Emerald Green instead of Wizards Orb?

The same difference applies the other way round: Emerald Green is a little darker.

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.