In Chinese culture, red is a lucky colour; it’s often used for gift giving or weddings. Similarly in Hinduism, red is considered lucky (as far as I’ve read) and brides wear red at their weddings. The only commonality I can see between Indian culture and Chinese culture (in terms of beliefs) is Buddhism, is it because of this or something entirely different or a coincidence?
might not have been in China… the rarity of iron removes one of the common sources of red tint… it may be the exact opposite… red was probably a rare and highly prized dye, and therefore associated with wealth and luck… like purple around the Mediterranean…