I am trying to decide the best combine for my dad to wear. He has said he wants me to pick out his outfit. Our colors are black, fire engine red, and silver/grey as an accent. The groom is wearing a black tux with a white shirt, black tie and vest, white and silver cuff links, and white pocket square, the best man is wearing a black tux with a white shirt, red tie and vest, black and silver cuff links, and white pocket square, the groomsmen/ushers/ring bearer are wearing a black tux with a white shirt, red tie and vest, black and silver cuff links, and red pocket square. My father will also be wearing a tux, but my fiance does not want him in the same color tux as him and the groomsmen so I am thinking dark grey with a white shirt, but I am still trying to decide on the colors of the vest (if the vest is even necessary), tie, cuff links, and pocket square. Any opinions? Is a vest necessary? If you think the vest is necessary does it need to be the same color as the tie?