ΔE 13.2, fair: the same colour family, but not a straight swap. Polished Gold is a little lighter, more saturated, cooler than Titanium Gold.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Polished Gold is a little lighter, more saturated, cooler than Titanium Gold.
The same difference applies the other way round: Titanium Gold is a little darker, more muted, 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.
See Titanium Gold on the colour wheel See Polished Gold on the colour wheel
All matches: Titanium Gold equivalents · Polished Gold equivalents