What is the blue nail rule
What is the blue nail rule?

What is the blue nail rule?

The blue nail rule refers to the meaning behind blue nail polish rather than a formal beauty guideline. In some social contexts, blue nails can signal relationship status, with lighter blue shades sometimes associated with being in a relationship. It has also been popularized on social media as part of playful trends, where certain colors carry symbolic messages. Beyond cultural meanings, blue nails can also reflect personal style or seasonal fashion choices. It is not a medical or industry rule but more of a social interpretation tied to color psychology, style preferences, and online conversations about nail polish colors.