Organic dye, dark blue, with indigo made from fermented leaves, but also synthetic. Used for dyeing, color durable refundable. Known as indigo, indigo is called in some areas.
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No. 2
Dark blue organic dye. This is made with fermented indigo leaves, China had long been widely used. The late nineteenth century only use synthetic, and gradually replace the natural products. Used for dyeing, color durable refundable. Known as indigo, indigo is called in some areas.
Translated by Google
No. 3
Dark blue. Wei Wei, "East" Part XI: "At this time, indigo sky from the north a group of geese flying over."