ΔE 14.8, fair: the same colour family, but not a straight swap. Orange Flare is a little lighter, more muted, warmer than Sacred Scarlet.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Orange Flare is a little lighter, more muted, warmer than Sacred Scarlet.
The same difference applies the other way round: Sacred Scarlet is a little darker, more saturated, 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 Sacred Scarlet on the colour wheel See Orange Flare on the colour wheel
All matches: Sacred Scarlet equivalents · Orange Flare equivalents