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 ...

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 ...

So whether it’s cornflower, cyan, neon or navy – get ready to raid your nail polish box for all your favourite shades of blue. Need nail inspiration? Here are 17 of my favourite saved Insta ...