As it turns out, the blue nail theory isn't too dissimilar from the viral "red nail theory." It has to do with your nail polish color and what it signifies. To learn more about this phenomenon ...

A rich navy blue ... polish topped with a navy jelly polish. A marbled chrome look reflects shades of blue, green, and purple, lending movement and dimension. This can be achieved with chrome nail ...

fun and festive nails are showing up, like negative-space looks, French tips, and colorful swirls.” This polish is like a stormy winter hue, just very chic. The steel-blue pigment is an elevated ...