Golden Griffon vs Nickel Azo Yellow

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Nickel Azo Yellow is more saturated than Golden Griffon.

Can I use Nickel Azo Yellow instead of Golden Griffon?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Nickel Azo Yellow is more saturated than Golden Griffon.

Can I use Golden Griffon instead of Nickel Azo Yellow?

The same difference applies the other way round: Golden Griffon is more muted.

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.