It would probably be hard to tell the difference unless you put them side by side. The only difference is the color, the tan ones look to be a shade lighter and pricing means their seasonal whereas the khaki is the core color. Based on those pictures and comparing to one of the pairs I own, I have the khaki ones but it's hard to tell lol.
Wow, looks great. This is a really strong collection in my opinion, a good comeback considering the last couple seasons haven't been very strong with too many recycled styles and questionable fabric choices.