ΔE 27.6, loose: different enough that you should pick on purpose. Titanium Gold is noticeably lighter, much more saturated, warmer than Canoptek Alloy.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 28). Titanium Gold is noticeably lighter, much more saturated, warmer than Canoptek Alloy.
The same difference applies the other way round: Canoptek Alloy is noticeably darker, much more muted, 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.
See Canoptek Alloy on the colour wheel See Titanium Gold on the colour wheel
All matches: Canoptek Alloy equivalents · Titanium Gold equivalents