ΔE 14.5, fair: the same colour family, but not a straight swap. Medium Yellow is a little darker, more saturated, warmer than Transparent Yellow Iron Oxide.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Medium Yellow is a little darker, more saturated, warmer than Transparent Yellow Iron Oxide.
The same difference applies the other way round: Transparent Yellow Iron Oxide is a little lighter, 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 Transparent Yellow Iron Oxide on the colour wheel See Medium Yellow on the colour wheel
All matches: Transparent Yellow Iron Oxide equivalents · Medium Yellow equivalents