Twilight Sky vs Mirage Blue

How close are they?

ΔE 10.6, fair: the same colour family, but not a straight swap. Mirage Blue is a little darker, more muted, warmer than Twilight Sky.

Can I use Mirage Blue instead of Twilight Sky?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Mirage Blue is a little darker, more muted, warmer than Twilight Sky.

Can I use Twilight Sky instead of Mirage Blue?

The same difference applies the other way round: Twilight Sky is a little lighter, more saturated, cooler.

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.