Crimson Red vs Rebel Red

How close are they?

ΔE 11.6, fair: the same colour family, but not a straight swap. Rebel Red is more saturated, cooler than Crimson Red.

Can I use Rebel Red instead of Crimson Red?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Rebel Red is more saturated, cooler than Crimson Red.

Can I use Crimson Red instead of Rebel Red?

The same difference applies the other way round: Crimson Red is more muted, 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.