Pastel Blue vs Leviathan Light

How close are they?

ΔE 11.0, fair: the same colour family, but not a straight swap. Leviathan Light is more muted, cooler than Pastel Blue.

Can I use Leviathan Light instead of Pastel Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Leviathan Light is more muted, cooler than Pastel Blue.

Can I use Pastel Blue instead of Leviathan Light?

The same difference applies the other way round: Pastel Blue is more saturated, warmer.

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.