Poisonous Cloud vs Canary Green

How close are they?

ΔE 11.6, fair: the same colour family, but not a straight swap. Canary Green is more muted than Poisonous Cloud.

Can I use Canary Green instead of Poisonous Cloud?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Canary Green is more muted than Poisonous Cloud.

Can I use Poisonous Cloud instead of Canary Green?

The same difference applies the other way round: Poisonous Cloud is more saturated.

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.