Rock Grey vs Pale Green

How close are they?

ΔE 12.0, fair: the same colour family, but not a straight swap. Pale Green is a little lighter, cooler than Rock Grey.

Can I use Pale Green instead of Rock Grey?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Pale Green is a little lighter, cooler than Rock Grey.

Can I use Rock Grey instead of Pale Green?

The same difference applies the other way round: Rock Grey is a little darker, 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.