I have a tendency to confuse Korean Hanbok with some of the old Chinese fashions, like these Tang ones. I think there's an influence between them. As it's turning out, a lot of us have out narrowest parts up near the bust, not down at the waist. I got the Heifer catalog just today and it was pointing out that India and some other ancient cultures used saffron for dye, so the color could also be related to that, though saffron always makes me think more orange yellow than orange pink, though it's merely a guess.