His eyes are so

Menacemerizing.

EXACTLY my Freund

They're also a blue that I've only seen in Australian men.

If I can find a man with eyes like that in Australia, I must move there :)

They're a rare blue, but they can be found! I'd definitely give it a try....

Actually, after thinking about what I said, what I really mean is - it's not all about the color of his eyes, it's more the expressions he does with his menacing stares in Vikings. Like how he can have smiling eyes while he's clearly angry or hateful. It's an awesome expression that I've never seen before. The colour plays into it but it's more than that.

I love him as Ragnar, but one day he could please an awesome villain. Intelligent, charismatic, menacing with a hint of calm crazy.

Yes!
Menacing calm-crazy....that's what it is.