Underbelly Blue vs Sunrise Blue

How close are they?

ΔE 14.4, fair: the same colour family, but not a straight swap. Sunrise Blue is much more saturated than Underbelly Blue.

Can I use Sunrise Blue instead of Underbelly Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Sunrise Blue is much more saturated than Underbelly Blue.

Can I use Underbelly Blue instead of Sunrise Blue?

The same difference applies the other way round: Underbelly Blue is 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.