ΔE 10.2, fair: the same colour family, but not a straight swap. C.P. Cadmium Yellow Dark is more saturated, warmer than Dorn Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). C.P. Cadmium Yellow Dark is more saturated, warmer than Dorn Yellow.
The same difference applies the other way round: Dorn Yellow is more muted, 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.
See Dorn Yellow on the colour wheel See C.P. Cadmium Yellow Dark on the colour wheel
All matches: Dorn Yellow equivalents · C.P. Cadmium Yellow Dark equivalents