light blue, off white, or teal shirt
No.
White or Grey.
a grey shirt or a gray pants.
Any color shirt really, anything matches gray.
Black, white, a darker or lighter shade of grey,
White\grey\black plain shirt(:
Grey
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.
Grey, or black
yes, why wouldn't you be able to?
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,
No. that is unstylish no