Imp Yellow vs Hykey Yellow

How close are they?

ΔE 14.5, fair: the same colour family, but not a straight swap. Hykey Yellow is much more muted, cooler than Imp Yellow.

Can I use Hykey Yellow instead of Imp Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Hykey Yellow is much more muted, cooler than Imp Yellow.

Can I use Imp Yellow instead of Hykey Yellow?

The same difference applies the other way round: Imp Yellow is much more saturated, 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.