Ignis Fatuus vs Light Violet

How close are they?

ΔE 12.2, fair: the same colour family, but not a straight swap. Light Violet is noticeably darker, warmer than Ignis Fatuus.

Can I use Light Violet instead of Ignis Fatuus?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Light Violet is noticeably darker, warmer than Ignis Fatuus.

Can I use Ignis Fatuus instead of Light Violet?

The same difference applies the other way round: Ignis Fatuus is noticeably lighter, 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.