ΔE 14.2, fair: the same colour family, but not a straight swap. Evil Sunz Scarlet is more saturated, warmer than Reddish Orange.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Evil Sunz Scarlet is more saturated, warmer than Reddish Orange.
The same difference applies the other way round: Reddish Orange is more muted, 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 Evil Sunz Scarlet on the colour wheel
All matches: Reddish Orange equivalents · Evil Sunz Scarlet equivalents