Light Violet vs Alien Purple

How close are they?

ΔE 12.4, fair: the same colour family, but not a straight swap. Alien Purple is more muted than Light Violet.

Can I use Alien Purple instead of Light Violet?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Alien Purple is more muted than Light Violet.

Can I use Light Violet instead of Alien Purple?

The same difference applies the other way round: Light Violet is more saturated.

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.