Pyrrole Red vs Hot Orange

How close are they?

ΔE 10.5, fair: the same colour family, but not a straight swap. Hot Orange is a little lighter, more muted than Pyrrole Red.

Can I use Hot Orange instead of Pyrrole Red?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Hot Orange is a little lighter, more muted than Pyrrole Red.

Can I use Pyrrole Red instead of Hot Orange?

The same difference applies the other way round: Pyrrole Red is a little darker, more saturated.

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.