Old Bronze vs Brass

How close are they?

ΔE 14.3, fair: the same colour family, but not a straight swap. Brass is a little darker, warmer than Old Bronze.

Can I use Brass instead of Old Bronze?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Brass is a little darker, warmer than Old Bronze.

Can I use Old Bronze instead of Brass?

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