Haha, I know it sounds like a stupid question, but, I'm in a gaming clan where we have people from many different nations. Mainly the UK, USA, and Australia. Some people in my clan spell it "color," while others spell it "colour". I've been debating in my head on which way to spell it for a while now, and I haven't come to a conclusion. So, I'm asking: Which is the proper way of spelling the word? Color, or colour?