Morning Coat with striped slacks. This is what I wore for my wedding, complete to the ascot. A proper tux has tails, and unless worn in the evening, should be a morning coat. It has rounded tails and a more casual look.
A tan suit and an orange cardigan will showcase your sartorial self. Choose a pair of white and brown leather brogues for a more relaxed feel. Shop this look on Lookastic: https://lookastic.com/men/looks/suit-cardigan-dress-shirt/20105 — Light Blue Dress Shirt — Beige Tie — White Pocket Square — Orange Cardigan — Tan Suit — White and Brown Leather Brogues