ΔE 13.9, fair: the same colour family, but not a straight swap. IJA Chrome Yellow is more saturated, warmer than Nickel Azo Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). IJA Chrome Yellow is more saturated, warmer than Nickel Azo Yellow.
The same difference applies the other way round: Nickel Azo 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 Nickel Azo Yellow on the colour wheel See IJA Chrome Yellow on the colour wheel
All matches: Nickel Azo Yellow equivalents · IJA Chrome Yellow equivalents