ΔE 14.7, fair: the same colour family, but not a straight swap. Ink Red is a little lighter, more saturated than Inktense Crimson.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Ink Red is a little lighter, more saturated than Inktense Crimson.
The same difference applies the other way round: Inktense Crimson is a little darker, 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 Inktense Crimson on the colour wheel See Ink Red on the colour wheel
All matches: Inktense Crimson equivalents · Ink Red equivalents