ΔE 11.8, fair: the same colour family, but not a straight swap. Chalice Red is more saturated, warmer than Crimson Hell.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Chalice Red is more saturated, warmer than Crimson Hell.
The same difference applies the other way round: Crimson Hell 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 Crimson Hell on the colour wheel See Chalice Red on the colour wheel
All matches: Crimson Hell equivalents · Chalice Red equivalents