ΔE 10.8, fair: the same colour family, but not a straight swap. Dark Yellow is a little lighter, more saturated, cooler than Hay Color.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Dark Yellow is a little lighter, more saturated, cooler than Hay Color.
The same difference applies the other way round: Hay Color is a little darker, more muted, 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 Hay Color on the colour wheel See Dark Yellow on the colour wheel
All matches: Hay Color equivalents · Dark Yellow equivalents