Fluorescent Red vs Fluorescent Orange

How close are they?

ΔE 15.0, fair: the same colour family, but not a straight swap. Fluorescent Orange is a little darker, more saturated than Fluorescent Red.

Can I use Fluorescent Orange instead of Fluorescent Red?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Fluorescent Orange is a little darker, more saturated than Fluorescent Red.

Can I use Fluorescent Red instead of Fluorescent Orange?

The same difference applies the other way round: Fluorescent Red is a little lighter, more muted.

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.