Every color I have matches trousers/khaki perfectly; look like they were designed together. They fit perfectly and stay up without being too tight. They feel great on too. Perfect level of thickness/thinness. They are the only socks I will now wear with a suit, khakis or trousers I bought khaki, brown, black, and grey but want more. A lot of companies try to do crazy things with sock materials and designs. It’s nice to have one that is making perfect, well made, classic business socks. Great price too. I am in Australia and I get them within about 2 weeks (with all the delays in shipping etc this is faster than if I bought something within Australia). If you’re on the fence, just buy them. Every man needs a pair of these socks for when he wants to look effortlessly well put together from top to bottom.