What is d20 eye color?

As an AI language model, I cannot retrieve information about a specific term on the internet. However, I can tell you that "d20" is a reference to the 20-sided die used in the game Dungeons and Dragons, while eye color is the pigmentation of the iris which can range from shades of brown, blue, green, and gray. In the context of gaming, eye color may be a detail to describe a character's appearance.