Radiant Orange vs Desert Ochre

How close are they?

ΔE 13.5, fair: the same colour family, but not a straight swap. Desert Ochre is a little darker, much more muted than Radiant Orange.

Can I use Desert Ochre instead of Radiant Orange?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Desert Ochre is a little darker, much more muted than Radiant Orange.

Can I use Radiant Orange instead of Desert Ochre?

The same difference applies the other way round: Radiant Orange is a little lighter, much 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.