Indigo plant usually termed as, 'Indigofera tinctoria' came in notice around 1600s. Indigo dye is an organic compound with a distinctive blue colour.
Indigo is derived from plants. The most popular plant used in production comes from the leaves of indigofera tinctoria, which thrives in hot humid places and is commercially grown in india and EL Salvador.
Indigo cultivation is unique to the region, it has come from, the temperature and the soil it is grown in,and the high level of impurities, giving variations in pigment for the more discerning of artisians and those who appreciate finer details.
Indigo dyestuff which is classified as vat dye and it is sustainable because after the pigment has been extracted all the water used in the process can be put back onto crops and even the Indigo provides some fertilizer once composted.
In Natural form, indigo dyestuff has a colour of blue but after reduced to leuco form, the solution turns to yellow.