While there are various nail theories floating around TikTok persuading us to try specific colors, there is one shade that caught our eye recently. According to Pinterest, the search for “fun blue nails” is up by 260 percent, as more people are looking to the bold hue for mani inspiration. Whether you’re into cobalt, navy or teal, this shade is going to be everywhere this year, which is why we gathered a list of 25 blue nail ideas to take your manicure to the next level.