ΔE 12.0, fair: the same colour family, but not a straight swap. Faded Plum is noticeably darker, cooler than Diviner Light.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Faded Plum is noticeably darker, cooler than Diviner Light.
The same difference applies the other way round: Diviner Light is noticeably lighter, warmer.
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 Diviner Light on the colour wheel See Faded Plum on the colour wheel
All matches: Diviner Light equivalents · Faded Plum equivalents