ΔE 6.0, close: similar, with a visible difference side by side. Toxic Yellow is a little darker than Slime Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Toxic Yellow is a little darker than Slime Yellow.
The same difference applies the other way round: Slime Yellow is a little lighter.
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.
See Slime Yellow on the colour wheel See Toxic Yellow on the colour wheel
All matches: Slime Yellow equivalents · Toxic Yellow equivalents