ΔE 12.4, fair: the same colour family, but not a straight swap. True Blood is noticeably darker, warmer than Reddish Orange.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). True Blood is noticeably darker, warmer than Reddish Orange.
The same difference applies the other way round: Reddish Orange is noticeably lighter, cooler.
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 Reddish Orange on the colour wheel See True Blood on the colour wheel
All matches: Reddish Orange equivalents · True Blood equivalents