what socks to wear with dark deinm jeans and brown shoes?

I think beige socks look really good with that combination.

BRown socks

the color you prefer

white, black, or gray

Black...simply because it goes with everything.

A dark color that blends in with the jeans and shoes. You do NOT want a slash of white athletic socks between the bottom of the jeans and the top of the shoes. That looks a little clueless about style and dorky.