I see nude colors often these days and it's really pretty. It is close to the skin color, so a very clean and natural image is formed.
Apart from these, I also like contrasting colors such as black and white. Also, red and its shades have already been written, no doubt, many times.
Apart from these, of course, there are many beautiful colors, but I don't think it's possible to generalize as the most beautiful nail polish color, every skin is unique. What looks beautiful on one woman may not look good on another woman. even the most beautiful color can change from season to season, it is so variable.