NASA's Perseverance Mars Rover

Sky colors are generally weather-dependent, even seasonal in nature. During dust storms (see, for example, the disastrous global storm of 2018) the sky gets darker and muddier. Cloudy days and evenings can add some different colors, and then of course there are the famous pale blue sunsets.

The question of whether Mars gets blue skies has been debated for decades. Personally, aside from the sunsets, I don't see what conditions could produce the blue skies you find on other worlds with much thicker atmospheres; the dust just never completely settles out enough to wash those reddish tones away altogether. The debate will continue, but there's probably only one to settle it - sending humans.

I should add that there are plenty of shots with the horizon included from every landed mission, in case you're curious.