ΔE 13.3, fair: the same colour family, but not a straight swap. Ice Yellow is a little lighter, more saturated, cooler than Fair Highlights.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Ice Yellow is a little lighter, more saturated, cooler than Fair Highlights.
The same difference applies the other way round: Fair Highlights 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 Fair Highlights on the colour wheel See Ice Yellow on the colour wheel
All matches: Fair Highlights equivalents · Ice Yellow equivalents