Nothing here yet.
For years I thought a wedding guest outfit meant one grey suit, worn to every single wedding until it fell apart or I did. Took a best man speech where I caught myself in a hotel mirror looking exactly like I had at three other weddings that year before I admitted the suit wasn't the problem, the thinking was. One good outfit isn't a uniform, it's a few decent pieces that can be mixed so you're not the bloke everyone recognises by his jacket.
It's not the place for anything too casual, obviously, and I'd steer clear of anything that reads as office wear too, the suit you've worn to forty meetings doesn't suddenly become festive because there's confetti about. Short sleeve anything is a no, whatever the weather forecast says. And be careful with full morning dress unless you've actually been told it's that sort of do, turning up in a waistcoat and tails to a barn wedding with hay bales for seating is its own kind of wrong. The limits are mostly about reading the room before you get dressed, not the clothes themselves.
Colour wise, the easiest things to live with are mid blue, a soft green, or a stone sort of tan, because they photograph well without screaming for attention, and they go with brown shoes which solves half your problems in one go. Navy is the safe one but it's safe because it works, with a white or pale blue shirt and no tie if the invite says relaxed, or a knitted tie if you want to look like you tried without looking like you're auditioning for something. A patterned shirt under a plain jacket does more for an outfit than people expect, same trousers and jacket you'd wear to a Tuesday meeting suddenly look like an occasion with the right shirt under them. Texture helps too, a linen jacket in summer has more going on than a flat worsted one even in the same colour.
Season matters more than most men admit. Lighter fabrics and paler colours for a summer wedding in a marquee, proper cloth and darker shades for anything in October with a church involved and no heating to speak of. A knitted tie and a heavier jacket cover you for most autumn and winter dates, while linen or a lighter weave earns you comfort through a long reception in July. Think about what you'll be doing in it, standing about for photos, sitting for a meal, dancing badly later, and dress for all three, not just the ceremony.
Get the colour and the weight right for the season and the rest sorts itself out without much drama.
Nothing here yet.