Ikkon-zome

It is said to be the color obtained by dyeing one hiki of silk (1 hiki = 2 tan) with one kin of safflower (1 kin = 560 g). It is more vivid than Sakura-iro but has a gentle tone. Ordinary beni dyeing used 20 kin, and in the Heian period it was prohibited, partly because of its high cost.