Bold Titanium White vs Sunrise Blue

How close are they?

ΔE 24.9, loose: different enough that you should pick on purpose. Sunrise Blue is noticeably darker, much more saturated than Bold Titanium White.

Can I use Sunrise Blue instead of Bold Titanium White?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Sunrise Blue is noticeably darker, much more saturated than Bold Titanium White.

Can I use Bold Titanium White instead of Sunrise Blue?

The same difference applies the other way round: Bold Titanium White is noticeably lighter, much 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.