Black shoes work with blue suits.

Black and blue are perfectly okay to wear together, and are actually the preferred combination. However, it used to be that brown shoes were acceptable choices for navy.

Tan works best with a white suit.

A light tan works well with a white suit. Usually during warm weather the best shoes to wear with a white suit are light brown suede.

Black shoes work best with a gray Suit.

Black is best. However; dark cherry is not bad if the gray suit is casual. If the suit is dressy, black is best.

Finally, what shoe colours work with what colours?

Black shoes go with suits that are black, blue, taupe, and burgundy.

Burgundy leather shoes go best with blue, khaki and some brown tones.

Brown shoes go with tan, khaki and light green.