Your tie should be contrast the color of your shirt.
The main color of a patterned tie should complement your suit and the secondary color should pick up the color in your shirt. Remember the color of your tie should not clash but the colors should not be so similar ( monotonal )that they fade into the suit.
Avoid wearing a striped tie with a striped shirt. Solid Ties are best worn with these styles of shirts.
The general width of a tie is 3.50 – 3.75 inches at the widest part of the tie. In the past few years there has been a growing trend especially amongst young men to wear skinnier ties that are approximately 2.50 – 2.75 inches wide.