ΔE 3.5, very close: most people won’t see a difference side by side. Titanium White is a little lighter than Corax White. They are different kinds of paint: Citadel Corax White is an opaque base/layer paint and Golden Titanium White is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 4). Titanium White is a little lighter than Corax White. They are different kinds of paint.
The same difference applies the other way round: Corax White is a little darker.
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.
See Corax White on the colour wheel See Titanium White on the colour wheel
All matches: Corax White equivalents · Titanium White equivalents