A grey jacket with blue trousers shows a clear change between paler upper body and darker lower surface here. The waistcoat appears closer in colour to the jacket. White shirt, darker patterned tie and small pocket accent frame the neck. A darker belt is visible centrally, with blue trousers continuing towards dark lace-up shoes. Both arms rest at the sides. This full view makes the transition easy to compare without establishing fibre or shared availability of every pictured component within an actual offer.
Use the distance between grey upper area and blue as an idea initially. Would you like that distinct boundary or prefer closer-coloured trousers? Try two real trousers with the same jacket and shirt. Inspect the middle without another bag before choosing smaller accessories so the lower colour itself remains understandable.
View the combination with and without the jacket afterwards. Choose the waistcoat as a separate piece and assess trousers with your shoes while walking. You can connect an existing grey upper frame deliberately to another lower colour without adopting the complete reference outfit, including belt, tie and square unchanged.