ΔE 13.3, fair: the same colour family, but not a straight swap. Brassy Brass is a little darker than Titanium Silver.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Brassy Brass is a little darker than Titanium Silver.
The same difference applies the other way round: Titanium Silver 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.
See Titanium Silver on the colour wheel See Brassy Brass on the colour wheel
All matches: Titanium Silver equivalents · Brassy Brass equivalents