ΔE 19.9, loose: different enough that you should pick on purpose. Aged Metal is noticeably lighter, more muted, cooler than Death By.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Aged Metal is noticeably lighter, more muted, cooler than Death By.
The same difference applies the other way round: Death By is noticeably darker, more saturated, 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 Death By on the colour wheel See Aged Metal on the colour wheel
All matches: Death By equivalents · Aged Metal equivalents