Semi-tight black shirt and semi-baggy olive drab pants rocks my world. That's probably my favorite combination.
Clothing can be tight as long as it's in moderation. I have some tight-ish shirts and some big-ish (lol, awesome word) shirts and I like both of them, but it just depends which one I feel like wearing. I never really thought about it until now, but if it's not uncomfortable then I guess you're alright.