ΔE 11.4, fair: the same colour family, but not a straight swap. Semi Gloss Black is a little darker, more muted than Traitor Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Semi Gloss Black is a little darker, more muted than Traitor Red.
The same difference applies the other way round: Traitor Red is a little lighter, 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 Traitor Red on the colour wheel See Semi Gloss Black on the colour wheel
All matches: Traitor Red equivalents · Semi Gloss Black equivalents