ΔE 14.2, fair: the same colour family, but not a straight swap. Light Red is a little darker, more saturated, warmer than Blood Red Skies.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Light Red is a little darker, more saturated, warmer than Blood Red Skies.
The same difference applies the other way round: Blood Red Skies is a little lighter, more muted, 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 Blood Red Skies on the colour wheel See Light Red on the colour wheel
All matches: Blood Red Skies equivalents · Light Red equivalents