ΔE 25.6, loose: different enough that you should pick on purpose. Sparkling Pink Anodized Aluminum is much more saturated than Polished Silver.
Can I use Sparkling Pink Anodized Aluminum instead of Polished Silver?
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Sparkling Pink Anodized Aluminum is much more saturated than Polished Silver.
Can I use Polished Silver instead of Sparkling Pink Anodized Aluminum?
The same difference applies the other way round: Polished Silver is much more muted.
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.