While blue hair is rarely seen in reality, it's alive and well in the world of anime and manga. There are all sorts of shades and hues like turquoise blue, which reminds one of the beautiful ocean, relaxing sky blue, calm navy blue, and so many more. You can almost predict what sort of personality a character will have based on the shade of their hair alone.
Iruma Suzuki (from Welcome to Demon School! Iruma-kun) is as soft and gentle as his blue hair would suggest.
Have any of the blue-haired beauties below caught your eye?