No red pants here, bright pants and I have a problematic relationship! The closest I have is a pair of nice rust Theory trousers. I don’t wear them much because they’re dressier than I bother with, but I do love them.
Here are the pants/jeans I have that would be most likely to work with the coat. Plus the Derek Lam pants from my other “dress over pants” post, which need the waist taken in and a small hem alteration — I’m waiting a little while to do pants alterations to see how my slow weight loss works out. I feel like the wide or flared leg silhouette will work the best. I’m not super adventurous with pants, obviously!