ΔE 11.3, fair: the same colour family, but not a straight swap. Aluminium (Metal.) is noticeably lighter than Translucent Silver.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Aluminium (Metal.) is noticeably lighter than Translucent Silver.
The same difference applies the other way round: Translucent Silver is noticeably darker.
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 Translucent Silver on the colour wheel See Aluminium (Metal.) on the colour wheel
All matches: Translucent Silver equivalents · Aluminium (Metal.) equivalents