noun /ˈindiˌgō/
    indigoes, plural; indigos, plural

    1. A tropical plant of the pea family, which was formerly widely cultivated as a source of dark blue dye

      2. The dark blue dye obtained from this plant

      3. A color between blue and violet in the spectrum

Bundi, Rajasthan, India

From Sibella Court's book etcetera etc

Les Indiennes

Vintage eiderdown from