Tyler has learned that yellow is a color. He has not yet learned to recognize it, but when anyone asks him to name the color of any something, he knows that yellow is a possible option. So he says it every time.
Sometimes, it's fine. Wrong, but fine.
"Tyler, what color is that car?"
"Nope. It's red."
Other times, it's obstinate. And still wrong.
"Tyler, what color shoes do you want to wear? The blues ones or the white ones?"
(As if he has yellow shoes.)
Still other times, it's funny. And sometimes accurate.
"Look at the snow, Tyler! What color is snow?"
Well, sometimes, yes.