[Fatnino]

See Orion's belt? Pretend that's a straight line. Now look perpendicular to it in both directions and you come to some fairly bright stars about the same distance both ways. One of those is red/orange and the other is blue/green. Visible to the naked eye even in an urban setting.

[nine_k]

Yes, can confirm, Betelgeuse is reddish, and Rigel is bluish, I see it nearly every night when Orion is high enough above horizon right in NYC. Mars was prominent a few weeks ago, also pretty orange. But their colors are not bright hues, not like LEDs; rather, they have some hint of color to me.

And, of course, they are but small dots, and the sky is vast and (in an urban setting) rather empty; there are few sufficiently bright stars, and of course nothing comparable to the colorful glow of space dust, nebulae, or even a noticeable atmosphere glow, except for backlight of the city.

[nonethewiser]

Orion’s Belt isn’t visible in many urban settings

[nine_k]

The belt is hard to see, but Betelgeuse is pretty prominent.

Venus, Jupiter, and even Mars become visible in twilight, when the sky is still comparatively bright (has intense color).

[Fatnino]

Yes, it's not visible indoors.