
The blue nail theory is a trend that has been circulating on TikTok, where women paint their nails blue to indicate that they are in a relationship. The trend is said to have originated from the idea that men will suggest the colour blue when asked what colour their partner should paint their nails.
| Characteristics | Values |
|---|---|
| Relationship status | Taken/in a relationship |
| Gender | Female |
Explore related products
What You'll Learn

Blue nail theory
The blue nail theory is a trend that has been popular on TikTok, where people paint their nails blue to indicate that they are in a relationship. The trend is said to have originated from the idea that when girls ask their boyfriends what colour they should paint their nails, they will suggest blue. This is a fun way for people to express their relationship status, and has been described as "hilarious" by some.
Vertical Ridges on Nails: What Do They Mean?
You may want to see also
Explore related products

Relationship status
The blue nail theory is a trend that has been circulating on TikTok, where women paint their nails blue to indicate that they are in a relationship. It is a fun way for people to express their relationship status.
The trend is said to have originated from the idea that when women ask their boyfriends what colour they should paint their nails, the boyfriends will suggest blue. This is thought to be a way for men to signal to other men that their partner is 'taken'.
Some people have found the trend amusing, with one nail educator commenting that "the whole idea that blue nails mean someone's in a relationship is funny enough, but the theory that guys always suggest blue when you ask them what colour to do your nails? That's even funnier".
However, the trend has gained traction, with influencers across the platform boasting their blue nails and contributing to the popularity of the trend.
The Meaning Behind Downward Curved Nails
You may want to see also
Explore related products

Blue nails and boyfriends
Blue nails have become a fun way for people to express their relationship status. The trend, which has been popular on TikTok, is said to reflect that someone is in a relationship. The idea is that when girls ask their boyfriends what colour they should paint their nails, they will suggest blue.
The trend has been described as "hilarious" by some, who find it funny that blue nails have come to mean that someone is "taken". However, it has become a popular way for people to signal their relationship status, with some men even telling their girlfriends to paint their nails blue so that it is known that they are in a relationship.
While some might think it's just a random trend, it seems that many people are in on the meaning of blue nails, with some men even suggesting the colour to their girlfriends. So, if you see a girl with blue nails, it might be a sign that she's not available!
The Fill Treatment: Nail Salon Maintenance Explained
You may want to see also
Explore related products
$7.48 $10
$8.22 $10

Blue nail trend
The blue nail trend is a fun way for people to express their relationship status. The trend, which has been popular on TikTok, suggests that if a girl has blue nails, she is in a relationship or 'taken'.
The idea is that blue nails signal to others that a girl has a boyfriend. It is also said that when girls ask their boyfriends what colour they should paint their nails, the boyfriends will suggest blue.
The trend has been popular among influencers, with many boasting their blue nails on social media. Some have found the trend amusing, with one nail educator commenting that it is "hilarious" and a "fun, random trend that gives nails a little extra meaning".
Black Toenails: What Do They Mean?
You may want to see also
Explore related products
$7.99 $10

Blue nail meaning
The blue nail theory has been doing the rounds on TikTok, with influencers across the platform sporting blue nails to indicate that they are in a relationship.
The trend is said to have originated from the idea that when girls ask their boyfriends what colour they should paint their nails, the boyfriends will suggest blue. This is a fun way for people to express their relationship status.
According to Urban Dictionary, when a girl has blue nails, it means she has a boyfriend or a 'significant other'. Females use this colour to let other people know that they are no longer available.
One commenter on a video about the trend said: "I've been single for so long I had to read the comments to understand this." This suggests that the trend is not widely known outside of TikTok.
Nail educator Jasmine Lewis commented: "The whole idea that blue nails mean someone's in a relationship is funny enough, but the theory that guys always suggest blue when you ask them what colour to do your nails? That's even funnier."
Deep Nail Ridges: What Your Nails Are Trying to Tell You
You may want to see also
Frequently asked questions
The blue nail theory is a trend that has been popular on TikTok, where people paint their nails blue to signal that they are in a relationship.
The blue nail theory is mostly applied to women, who use the colour to signal that they are no longer available.
Some people believe that when women ask their boyfriends what colour they should paint their nails, the boyfriends will suggest blue.
The blue nail theory is just a fun trend, and it's not clear how many people are actually in on it.











































