How many kryptonite colors are there?

In the DC Comics universe, kryptonite comes in various colors, each with different effects on Superman and other Kryptonians. The most commonly known colors include green, gold, red, blue, black, white, and pink, among others, totaling around 20 different variants. Each color has unique properties, such as green kryptonite weakening Superman, while gold kryptonite can permanently remove his powers. The diversity of kryptonite colors adds depth to the storytelling and character interactions in the Superman lore.