The blue nail theory has been a topic of conversation on TikTok, but what exactly is it? Ahead, an expert explains.
How Are Blue and Yellow Related in Color Theory? Blue and yellow are complementary colors — which means they're on opposite ...
The blue nail theory has gained popularity on TikTok, suggesting that women wearing blue nail polish are in a committed ...
In the world of psychology and color theory, blue is often linked to feelings of calm, relaxation, and stability,' says Dr.