Underbelly Blue vs Cold White

How close are they?

ΔE 14.2, fair: the same colour family, but not a straight swap. Cold White is noticeably lighter, more muted than Underbelly Blue.

Can I use Cold White instead of Underbelly Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Cold White is noticeably lighter, more muted than Underbelly Blue.

Can I use Underbelly Blue instead of Cold White?

The same difference applies the other way round: Underbelly Blue is noticeably darker, more saturated.

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.