Traditionally, the Windsors avoid black in most circumstances, reserving the color of mourning for funerals.
But Kate has rocked the fashion-forward color anyway and not just for evening wear.
But Kate has made several daytime appearances in all-black looks too.
The strapless dress featured a playful white collar.
It was Diana who embraced black as a chic choice, refusing to consign it to periods of mourning.
She memorably wore black dresses, even while she was still a working royal.
