I adore olive green an inordinate amount, and when it comes in an off-the-shoulder, oversized knit, I don't even have to think twice about it. I would describe this one I'm wearing as a muted olive green with hints of mustard. It's also super affordable at under $60, and so easy to wear. To be a little more conservative for the office, you can wear it just slightly off the shoulders. Or shrug it down to flash a bit more skin. I paired it with blue skinny jeans and black over-the-knee suede boots that I've had forever. I'm trying to really cull down my spending for the first few months of the year (the holidays really destroyed my wallet), so sometimes all it takes is one little easy sweater to make a simple outfit that much better.