However, it's worth noting that:

* Hydrogen can emit light: When hydrogen is energized (for example, by passing an electric current through it), it can emit a reddish-pink glow. This is due to the electrons in the hydrogen atoms moving to higher energy levels and then releasing energy as they return to their ground state. This is the same principle that makes neon signs glow.

* Liquid hydrogen is colorless: Though hydrogen gas is colorless, liquid hydrogen is also colorless.

So, while hydrogen itself is colorless, it can appear to have a color under certain conditions.