ΔE 15.0, fair: the same colour family, but not a straight swap. Moon Yellow is cooler than Diarylide Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Moon Yellow is cooler than Diarylide Yellow.
The same difference applies the other way round: Diarylide Yellow is 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.
See Diarylide Yellow on the colour wheel See Moon Yellow on the colour wheel
All matches: Diarylide Yellow equivalents · Moon Yellow equivalents