Léon's eyes

Léon asks me sometimes what he should answer when people ask him what colour his eyes are. Imagine being nearly eight and not knowing how to answer that question... but to be honest, I'm not sure I know what to tell him! Let's analyse them: the upper half of his right eye is a mid blue colour and the outer half of his left one is definitely light blue. Each eye also has a dark blue circle all the way around but the bottom of his right eye is dark orange, and the inner portion of his left one is distinctly yellow, giving a slightly greenish hue. So what should he tick on a class survey that gives brown, blue and green as the only options? :-)