-- Inspiration -- -- -- Brown jacket brown bow tie dark denim and white shirt with the white pocket square. That would be a great way to make denim look not so casual. Of course the black dress pants and black bow tie as shown here looks ok too
Why does this work? Jacket is almost a shawl collar. Balances the red vest. Shirt and tie are accessories/fillers and could be any colour combination provided they do not take up more of the visual space.