Green vs Sulfide Ochre

How close are they?

ΔE 8.5, close: similar, with a visible difference side by side. Sulfide Ochre is more muted, warmer than Green.

Can I use Sulfide Ochre instead of Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Sulfide Ochre is more muted, warmer than Green.

Can I use Green instead of Sulfide Ochre?

The same difference applies the other way round: Green is more saturated, 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.