Apothecary White vs Purple Glaze

How close are they?

ΔE 11.8, fair: the same colour family, but not a straight swap. Purple Glaze is more saturated than Apothecary White. They are different kinds of paint: Citadel Apothecary White is a one-coat contrast-style paint and Two Thin Coats Purple Glaze is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.

Can I use Purple Glaze instead of Apothecary White?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Purple Glaze is more saturated than Apothecary White. They are different kinds of paint.

Can I use Apothecary White instead of Purple Glaze?

The same difference applies the other way round: Apothecary White is more muted.

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.