ΔE 13.9, fair: the same colour family, but not a straight swap. Hammered Copper is noticeably lighter, more saturated than Sparkle Motion.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Hammered Copper is noticeably lighter, more saturated than Sparkle Motion.
The same difference applies the other way round: Sparkle Motion is noticeably darker, 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.
See Sparkle Motion on the colour wheel See Hammered Copper on the colour wheel
All matches: Sparkle Motion equivalents · Hammered Copper equivalents