Spartan Bronze vs Brass

How close are they?

ΔE 9.7, close: similar, with a visible difference side by side. Brass is a little darker than Spartan Bronze.

Can I use Brass instead of Spartan Bronze?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Brass is a little darker than Spartan Bronze.

Can I use Spartan Bronze instead of Brass?

The same difference applies the other way round: Spartan 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.