To me (not colour blind), they are not really coloured. Some are slightly more yellow or blue, but that's about it. They do, however, twinkle: https://en.wikip

To me (not colour blind), they are not really coloured. Some are slightly more yellow or blue, but that's about it. They do, however, twinkle: https://en.wikipedia.org/wiki/Twinkling https://en.wikipedia.org/wiki/Twinkling And while twinkling, I catch glimpses of red, yellow, blue or others. Of course, this is very subjective and that wikipedia page doesn't mention colour changing at all.