White or Grey.
Practically any. Beige is a very neutral and "flexible" color.
Any colors will go with a white shirt
plain white tee.... or a tan coloured shirt nuetrals perferrably, you could do gray too
Depends on what you are matching it with. What color is your suit/pants? Get that color on your tie and you should be OK. Medium grey (in a glen plaid) or tan could work.
Gray pants will go well with any color. I would chose something depending on the season and the event you are attending. Bright for summer and spring,
Army Pants and a Army Shirt
A purple tie goes with khaki pants and a white shirt.
Depends on the type of pink. If neon, neon green and black shirt. If the pink is pastel, cream and pastel turquois shirt.
brown pants
They don't technically match, but I think they coordinate (meaning they go together). If the pants are a solid color, then you can definitely wear a striped shirt with them, and navy is a color that goes with most everything. You should be good!
yes.. black goes with anything.