Bronze vs True Brass

How close are they?

ΔE 17.3, loose: different enough that you should pick on purpose. True Brass is noticeably darker, more muted, cooler than Bronze.

Can I use True Brass instead of Bronze?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). True Brass is noticeably darker, more muted, cooler than Bronze.

Can I use Bronze instead of True Brass?

The same difference applies the other way round: Bronze is noticeably lighter, more saturated, warmer.

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.