Louie G’s Tuesday Morning Trivia Question

How observant are you? I once dated a girl for nearly 4 months and couldn't even tell my friend what color hair she had! Obviously I'm extremely unobservant.

I'm observant in that I know Charlie Brown always wears the same shirt. I sort of always thought he was married because most married guys find a piece of clothing that is comfortable and wear the hell out of it. Or wait, maybe that's all guys? Anyway, I digress.

Here is today's trivia question -

What color is Charlie Brown's shirt?