ΔE 12.2, fair: the same colour family, but not a straight swap. Orchid Light is noticeably lighter, cooler than Blue Violet.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Orchid Light is noticeably lighter, cooler than Blue Violet.
The same difference applies the other way round: Blue Violet is noticeably darker, 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 Blue Violet on the colour wheel See Orchid Light on the colour wheel
All matches: Blue Violet equivalents · Orchid Light equivalents