Inferno Orange vs Inferno Red

How close are they?

ΔE 13.6, fair: the same colour family, but not a straight swap. Inferno Red is more saturated, cooler than Inferno Orange.

Can I use Inferno Red instead of Inferno Orange?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Inferno Red is more saturated, cooler than Inferno Orange.

Can I use Inferno Orange instead of Inferno Red?

The same difference applies the other way round: Inferno Orange 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.