I’ve been pleasantly surprised when I discovered for myself real color of oxygen, it looks like sky.
Let’s not waste opportunity of showing real color of oxygen to mod users around the world.
Actual color of oxygen: https://upload.wikimedia.org/wikipedia/commons/c/c3/Liquid_oxygen_in_a_beaker_4.jpg
google search query “oxygen in a beaker”

Not this color that in use

Independent source https://www.youtube.com/watch?v=zu7revUCefw

I tried it:

1 - New Oxygen. Sky Blue.
2 - New Chlorine. In fact it has a yellow-green color.
3 - New Tritium. It was blue and now looks like a new oxygen so I changed it to most recognizing color of tritium tubes i.e. glowing green.
4- New Lithium. It was yellow-green so I make it more orange as one of its mineral form (Lithium petalite).

Oxygen:

Chlorine:

Tritium:

Lithium:

@raspopov "4- New Lithium. It was yellow-green so I make it more orange as one of its mineral form (Lithium petalite)."
https://www.123rf.com/photo_24392938_petalite-also-known-as-castorite-important-ore-of-lithium-isolated-on-white.html
Real color of lithium is: https://upload.wikimedia.org/wikipedia/commons/a/ae/Lithium_paraffin.jpg (Lithium floating in oil)
«In moist air, lithium rapidly tarnishes to form a black coating» en.wikipedia.org/wiki/Lithium

Many metals has white metallic color. :-)