Can I wear a khaki or tan jacket to a wake if I'm going from work?

For a wake? I don't see why not. You'll still likely be more dressed up than others.

Yes, you being there means more to the grieving people than what you are wearing.

Just dontn wear a zoot suit and you'll be good. The last thing they will be thinking about is what you are wearing








Well except that one Aunt in the family that feels guilty that she doesn't feel sadder about the death so she overcompensates by bitching about every small detail about everyone who is there. The first thing she will think about is your unthoughtful coat. But don't mind her

It's summer, so the rules are a bit relaxed. You can probably get by with it.

It is fine.

Nobody there will care or notice what you have on.