Some more pictures of the guy if it helps? I didn't really think red roan because I own a strawberry myself and they don't look too similiar coat wise. Also, whatever he is it's def over chestnut, the one patch of clear hair over his eyes is a nice red :] Same with his mane and tail, his mane halfway down goes a light cream (probably white, he hasn't gotten a REALLY thorough bath yet) but the rest of his mane and tail are all chestnut.
Yeah my boss didn't even tell me that we got him, he was just on my roster for camp one day >.< she can be a little spacey like that. And he was only purchased as a horse for the lesson program, so long as he was sound and well trained, breeding/color really doesn't matter all that much to us. I'm just curious XD