Moonbeam Yellow vs C.P. Cadmium Yellow Dark

How close are they?

ΔE 12.4, fair: the same colour family, but not a straight swap. C.P. Cadmium Yellow Dark is a little lighter, cooler than Moonbeam Yellow.

Can I use C.P. Cadmium Yellow Dark instead of Moonbeam Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). C.P. Cadmium Yellow Dark is a little lighter, cooler than Moonbeam Yellow.

Can I use Moonbeam Yellow instead of C.P. Cadmium Yellow Dark?

The same difference applies the other way round: Moonbeam Yellow 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.