Blue has never been that intense :)
By the way, something which "blue" my mind when I read it: do you know why "blue" is never mentioned in Homer's works? ... Homer refers to the sea as "dark-wine"... And it's not only him, the Bible for example does not refer to blue either.
The colour existed of course, but the men of that time or their language didn't take it into account. It seems blue was not a concept at all... it's really interesting: https://www.spectator.co.uk/2010/06/fathoming-the-winedark-sea/