Corax White vs Insignia White (US Navy)

How close are they?

ΔE 7.5, close: similar, with a visible difference side by side. Insignia White (US Navy) is a little darker than Corax White.

Can I use Insignia White (US Navy) instead of Corax White?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Insignia White (US Navy) is a little darker than Corax White.

Can I use Corax White instead of Insignia White (US Navy)?

The same difference applies the other way round: Corax White is a little lighter.

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.