Okay, so I'm not sure what to do so I figured I'd throw it out there for all of you to help me. My FI's grandfather is the only living grandparent between the two of us. This weekend, he mentioned to me that he'd really like to wear a tux to the wedding. I said no problem! He's excited and if he wants to wear a tux (like my dad and FI's dad) I have no problem with that. My question is this...what color tie and pocket square does he have? FI has a vest and pocket square to match my champagne dress. The GMs have black vests with red ties/pocket squares that match the BMs. My dad has a black vest with a green tie/pocket square to match my mother's dress and FI's dad has a black vest with a brown tie/pocket square to match FI's mother's dress. The question though is what colors does Gramps wear?