ΔE 13.9, fair: the same colour family, but not a straight swap. Seraph Red is noticeably darker, more saturated than Dusk Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Seraph Red is noticeably darker, more saturated than Dusk Red.
The same difference applies the other way round: Dusk Red is noticeably lighter, more muted.
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 Dusk Red on the colour wheel See Seraph Red on the colour wheel
All matches: Dusk Red equivalents · Seraph Red equivalents