not seen that one before, not to say it doesn't exist but have a feeling it'd be a custom job. Hard to tell as the film looks heavily filtered too but I thought it was British racing green but then it's multiple tones which says to me custom.
It’s just Montecarlo blue. You can tell his video is heavily filtered or “color corrected” in post. All the Alfa dark metallic colors seem to have lots of different metallic flake colors in them giving them unique coloration in bright sunlight. Vulcano black has what looks like specs of blue and purple which makes it not even look quite black in strong sunlight, almost look like a dark purple. Very cool.