Poisonous Cloud vs Sunny Yellow

How close are they?

ΔE 13.1, fair: the same colour family, but not a straight swap. Sunny Yellow is noticeably lighter than Poisonous Cloud.

Can I use Sunny Yellow instead of Poisonous Cloud?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Sunny Yellow is noticeably lighter than Poisonous Cloud.

Can I use Poisonous Cloud instead of Sunny Yellow?

The same difference applies the other way round: Poisonous Cloud is noticeably darker.

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.