With jeans, versatility is typically given. I'm going to go ahead and assume your jeans are blue, so basically any color will work as long as it isn't something silly like a pastel or deep purple. Also, try and get some new shirts that have a good fit similar to [url=https://www.80spurple.com/shop/product/119756/48/square-one-men-s-in-style-button-up-polo-shirt-heather]this[/url]. And if you really think some of your clothes can even go formal, you can try getting them tailored.