Afterglow vs Lilith Yellow

How close are they?

ΔE 9.9, close: similar, with a visible difference side by side. Lilith Yellow is a little darker, warmer than Afterglow.

Can I use Lilith Yellow instead of Afterglow?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Lilith Yellow is a little darker, warmer than Afterglow.

Can I use Afterglow instead of Lilith Yellow?

The same difference applies the other way round: Afterglow is a little 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.