I never wear black apart from black trousers in the colder months. At my mother's and MIL's funerals I wore navy and white.
My mother always kept a black coat and shoes in the wardrobe but wore neutral colours underneath it, so it she went to the wake she wouldn't take her coat off so as not to offend!
My grandmother had a black dress and coat, hat, shoes, stockings and gloves for such occasions and would alter the dress and coat slightly so that no one would recognise it. She never went anywhere without a hat or gloves.
When my grandfather died my Mum closed all the curtains and said they had to stay closed until after the funeral - three weeks later! I refused to keep my bedroom curtains closed, it was so gloomy and depressing, and it caused a big row between us.
I have a lovely Welsh gold mourning locket decorated with black enamel, it was my great-grandmothers after the death of her husband. There is nothing inside it. It originally had a lock of hair which my GM removed when it passed to her. It's always admired when I wear it, but if I say what it is people shudder and ask how I could possibly wear something so sad. I just see it as a rather beautiful piece of jewellery that has a link to my ancestors.