ΔE 17.9, loose: different enough that you should pick on purpose. Sterling Silver is a little lighter, much more muted than Deathless Metal.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Sterling Silver is a little lighter, much more muted than Deathless Metal.
The same difference applies the other way round: Deathless Metal is a little darker, much more saturated.
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 Deathless Metal on the colour wheel See Sterling Silver on the colour wheel
All matches: Deathless Metal equivalents · Sterling Silver equivalents