Not a good idea
Next: The Selling Suit
One of the biggest problems I see with salesmen is their suicidal leap into 'statement.' I know this because I was so good at it. That first photo up there is me circa 1992 telling the world I was fed up with 12 years of Republicans.
I wore my affiliation proudly... and loudly. "How do you vote a straight Democratic ticket?" I shouted to my wife from inside a voting booth in the Republican strong hold of Lake Forest, IL. And if you didn't like my politics then the hell with you. Odd, since almost everyone in my industry (except attorneys) were and still are Republicans. See? I'm still doing it.
Moving on. The matching of a suit color, to a shirt, to a tie, is also common. And shame on the man who does it since he usually has the economic wherewithal to do it right. He just can't be bothered. Instead, he uses the color palette of his 12 year old mind left over from putting together Revell model airplanes. "Gray suit, gray shirt, gray tie." In Philadelphia, they'll even add gray shoes.
So here it is. The shirt should contrast against the tie and suit. That usually means a white or light blue shirt. If the tie is patterned, stick to a solid shirt. If the shirt is patterned, stick to a solid tie. Remember, these rules are not for expression but for getting paid. Getting the job. The free drink. The upgrade. A mortgage. The Order.
The idea is to avoid the baggage that people will associate with certain items of apparel. No cuff links. Plain collar. White or blue. The contrasting collar on a younger man is a first class ticket to affectationville but, if you're over 50, what the hell, you deserve it. Try and stick to the "Gotta Iron" as opposed to wash and wear but if you're young and poor, keep a couple wash and wear in the closet for the, "I-don't-have-money-to-get-my-shirts-outta-the-cleaners" emergency.
Next is the Selling Suit. If you're still awake.