Titanium White vs Ink White

How close are they?

ΔE 9.4, close: similar, with a visible difference side by side. Ink White is a little lighter than Titanium White.

Can I use Ink White instead of Titanium White?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Ink White is a little lighter than Titanium White.

Can I use Titanium White instead of Ink White?

The same difference applies the other way round: Titanium 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.