A blue blazer ensemble connects an open longer jacket with a similarly coloured top and long trouser legs. The top beneath has a rounded upper edge, with vertical lines continuing through its middle. The blazer lapels form longer angled boundaries around it. One hand rests in a trouser pocket. The frontal image shows how these areas connect, but not a complete back view or a verified fibre description.
Begin your own combination with the top. Assess its upper edge without a jacket, then add the blazer. If you intend to remove the jacket during the evening, that first version should appeal to you too. Examine both boundaries together rather than ordering solely from similar colour names. Matching colour and matching actual surface are separate questions.
Finally test the long trousers with your intended shoes. Walk a few steps and observe the lower edge. A standing pose with a hand in a pocket does not show that sequence. Decide after a complete fitting whether the continuous blue area is your aim or whether you prefer a clearer difference between jacket and trousers.