Poison Yellow vs Poisonous Cloud

How close are they?

ΔE 11.9, fair: the same colour family, but not a straight swap. Poisonous Cloud is a little lighter, cooler than Poison Yellow.

Can I use Poisonous Cloud instead of Poison Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Poisonous Cloud is a little lighter, cooler than Poison Yellow.

Can I use Poison Yellow instead of Poisonous Cloud?

The same difference applies the other way round: Poison Yellow is a little darker, 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.