ΔE 11.1, fair: the same colour family, but not a straight swap. Dark Vermilion is a little darker, more muted, cooler than Carnage Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Dark Vermilion is a little darker, more muted, cooler than Carnage Red.
The same difference applies the other way round: Carnage Red is a little lighter, 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 Carnage Red on the colour wheel See Dark Vermilion on the colour wheel
All matches: Carnage Red equivalents · Dark Vermilion equivalents