ΔE 14.0, fair: the same colour family, but not a straight swap. Orange is a little lighter, much more muted than Red Truth.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Orange is a little lighter, much more muted than Red Truth.
The same difference applies the other way round: Red Truth is a little darker, 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.
See Red Truth on the colour wheel See Orange on the colour wheel
All matches: Red Truth equivalents · Orange equivalents