When it comes to matching your socks to your outfit it's not all about color. Of course you want your to look nice with your outfit, but there are other factors to take into account.
How thick your socks should be depends on what kind of shoe you're going to be wearing, your outfit, and the occasion. If you're going to be wearing hiking boots or will be spending time out in the cold, you're going to want to wear thicker socks. Thin nylon socks are best worn when you're dressing up or are going to be wearing heels. Anything in between is okay for casual wear or when wearing tennis shoes. Remember to also keep the weather in mind as well. If it's hot out it will be best if you wear a thinner sock; otherwise, your feet are going to sweat.
The length of your sock also depends on your outfit. If you're wearing a skirt or dress it's best to either wear ankle socks or nylons depending on whether the outfit is casual or formal. Ankle socks can also be worn with shorts. Ankle socks or cotton crew socks are great for casual wear and for working out. If you're wearing jeans and your socks aren't going to show, stick to ankle socks so they don't interfere with the bottom of your pant leg.
When it comes to the color of your socks you don't want to be too outrageous. If you stick to black and white cotton socks you can almost never go wrong. Black and white will go with almost any outfit and don't draw a lot of attention. As far as nylons, it's usually best to wear black or nude colors. If you want you can get socks in a wide range of colors to match any of your outfits, but it's not really necessary and sometimes it can look quite silly. Socks with little designs on them are also a lot of fun, but try not to get too carried away.
Also keep in mind times you don't want to wear socks. Most of the time it's ok to go without socks if you're wearing sandals. Also never wear socks with flip-flops.
Picking the right socks for your outfit can be easy. You just have to keep a few things in mind: the weather, your shoes, your outfit and the occasion. Keep these things in mind and remember these tips and you should have no trouble picking the right socks for every outfit.