Dirty Yellow vs Medium Yellow

How close are they?

ΔE 11.3, fair: the same colour family, but not a straight swap. Medium Yellow is more saturated than Dirty Yellow.

Can I use Medium Yellow instead of Dirty Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Medium Yellow is more saturated than Dirty Yellow.

Can I use Dirty Yellow instead of Medium Yellow?

The same difference applies the other way round: Dirty Yellow is more muted.

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.