Could sky be different color on another planet?

Question

So i was wondering. I know Mars sky is red, but Mars can't be lived on without space suits. I was curious, if there was another Planet, that had oxygen and water and was liveable, is the sky always going to be blue, or could it be different colors, I was just thinking about it and made me curious

Answer 1

Hm....When you find out tell me!

Answer 2

not really colourful..

either it will be really dark, blue, rusty red, or orangish, yellowish....