Permanent Orange vs Orange Fire

How close are they?

ΔE 10.9, fair: the same colour family, but not a straight swap. Orange Fire is more muted than Permanent Orange.

Can I use Orange Fire instead of Permanent Orange?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Orange Fire is more muted than Permanent Orange.

Can I use Permanent Orange instead of Orange Fire?

The same difference applies the other way round: Permanent Orange is 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.