Castellax Bronze vs Gold

How close are they?

ΔE 6.3, close: similar, with a visible difference side by side. Gold is a little darker than Castellax Bronze.

Can I use Gold instead of Castellax Bronze?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Gold is a little darker than Castellax Bronze.

Can I use Castellax Bronze instead of Gold?

The same difference applies the other way round: Castellax Bronze is a little lighter.

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.