Demon Purple vs Deep Grey

How close are they?

ΔE 14.8, fair: the same colour family, but not a straight swap. Deep Grey is more muted, cooler than Demon Purple.

Can I use Deep Grey instead of Demon Purple?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Deep Grey is more muted, cooler than Demon Purple.

Can I use Demon Purple instead of Deep Grey?

The same difference applies the other way round: Demon Purple 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.