Unexpected behavior of Hue?

I’m approaching the Wolfram Language and noticed the following:

Why do I get two different colors?

I was supposing that 1/2 is interpreted as an integer division, but:

◔

So why?

This seems to be a problem only on Wolfram Cloud. On Mathematica desktop there is no problem.

Where both

Hue[1/2]
Hue[0.5]

returns the same light blue color.

I’m discovering a number of minor issues in Mathematica Online and I’m going to report them.