Hoｗeｖer, the deep red shades achieved by using beni-bana flower (safflower, Carthamus tinctorius) dyes have been much loved amongst women since around the time of the Heian era and often worn even on formal occasions.
しかし、特に紅花が出す深紅色が平安時代の頃から女性達の間で愛されて公式の場でもしばしば用いられた。