The question I get asked most about red skirts is whether they're too much for everyday wear, and the answer is no, not if you pick the right red and the right shape. A proper mid tone red, not orange leaning and not the sort that looks like it belongs on a Christmas card, goes with far more of an ordinary wardrobe than people assume.
If you've never owned one, start with a straight or slightly A line midi in a matte cotton or a ponte knit, something with a bit of structure rather than anything slippery. A bias cut satin skirt looks beautiful on a hanger and then clings to anywhere you didn't expect on an actual body, and I say that as someone who bought one for a wedding and spent the whole day doing a discreet tug at the back. The midi length in a sturdier fabric sits well at the waist, doesn't need constant adjusting, and photographs fine without you having to think about it, which matters less than the fact that it also survives sitting down on a train without creasing into a map of Yorkshire.
Before you buy, check where the waistband actually sits once you've got it done up, not just held up in front of a mirror. A lot of red skirts are cut high at the back and lower at the front to flatter the stomach, which is fine until you bend over and the back gapes like a letterbox. Check the lining too, red fabric is notorious for needing one, and a skirt without it in a lighter weave will sit oddly and show every seam of what's underneath. Zips at the side are kinder to the eye than a centre back zip that can pull slightly under the bum on anyone with hips, so if that's you, have a look at the construction photos rather than just the front view.
Once you've got one that fits properly, it does more work than the colour suggests. A red skirt sits happily under a plain navy or grey jumper for most of the week, takes a white shirt tucked in without looking like a uniform, and holds its own against black tights and boots without needing anything else to shout. I'd keep the rest of the outfit quiet around it, one strong colour is plenty, and let the skirt be the thing anyone actually remembers about what you had on. A good one, in the right cut, tends to get worn far more often than it gets noticed, which is really the point of it.