Imp Yellow vs Lilith Yellow

How close are they?

ΔE 11.8, fair: the same colour family, but not a straight swap. Lilith Yellow is more muted, cooler than Imp Yellow.

Can I use Lilith Yellow instead of Imp Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Lilith Yellow is more muted, cooler than Imp Yellow.

Can I use Imp Yellow instead of Lilith Yellow?

The same difference applies the other way round: Imp Yellow is more saturated, 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.