ΔE 9.1, close: similar, with a visible difference side by side. RLM 76 Light Blue is more muted, warmer than Toxic Mist.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). RLM 76 Light Blue is more muted, warmer than Toxic Mist.
The same difference applies the other way round: Toxic Mist is more saturated, cooler.
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 Toxic Mist on the colour wheel See RLM 76 Light Blue on the colour wheel
All matches: Toxic Mist equivalents · RLM 76 Light Blue equivalents