Nothing wrong with a distinct contrast between top and bottom, if you are in sports jacket. A contrast combination can be too hard though. Top and bottom may end up in completely separate camps.
To avoid that I like to create similarities between top and bottom as well. It may be the colour’s hue, which could be at about the same level – as in the relationship between jacket and trousers shown above. And, it may be the socks that refers to the tie (and shirt) instead of the trouser’s colour, also demonstrated above. A brownish handkerchief in the breast pocket would have completed the logic.
Both Harris Tweed and cord trousers are bespoke from an Italian tailor. The brogue monk shoes are from an old shoemaker in Warsaw. The shirt is from Camiceria Carmen. And, Antonio Muro has made the unlined navy wool tie.
Source: The Journal of Style