Forgive me for thinking ahead to warmer weather, but what pants would one wear with a lighter blue chambray shirt, and an off white linen blazer?
The color that I'm not supposed to wear in the winter but do so anyway.
Nantucket reds! I think tan chino's could work well too. I'd potentially try them with off white pants as well, but then you'd have to wear a different blazer like khaki or navy.
They do look like suit trousers if taken on their own, but with a lightweight significantly contrasting jacket, or a cashmere/merino sweater, I doubt anyone would take issue.
I mean, solid trousers and lightly patterned trousers do exist, it isn't like you are wearing navy pinstripe trousers.
Strangely, they were sold as odd trousers, which is probably why it was slightly unexpected.
However, I can still send them back, which will probably be easier than constantly trying to come up with combinations to make them work. Further, I will have to leave your question to someone more adapt with that clothing combination.
I'm 24 so that should explain it. If you're is about a size 40.... You know who to contact!
What do you think about this as a casual sportcoat/outerwear jacket? By this I mean thrown on over sweaters and casual shirts rather than dressed up and often unbuttoned