ΔE 10.1, fair: the same colour family, but not a straight swap. Ruby Red is more muted, warmer than Metallic Rose.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Ruby Red is more muted, warmer than Metallic Rose.
The same difference applies the other way round: Metallic Rose is more saturated, cooler.
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 Metallic Rose on the colour wheel See Ruby Red on the colour wheel
All matches: Metallic Rose equivalents · Ruby Red equivalents