Light grey works perfectly with most shades of blue and this pattern combination works well. As long as you have 1 strong pattern (vest) and 1 “light” pattern (suit) you should be fine. Combine 2 strong patterns (like
49 Infographics that will make a Man Fashion Expert
5 combinaciones que se pueden hacer con traje azul marino / 5 Outfits From One Navy Suit – Infographic 5 Combinations to wear a navy suit.