Indigo is a rich color between blue and violet on the visible spectrum, it's a dark purplish blue. Dark denim is indigo as is Indigo dye. It's a cool, deep color and also a natural one. ... Natural indigo has been around since Greek and Roman times and popularized in India, China and Japan.

What color is indigo?

Indigo dye is a greenish dark blue color, obtained from either the leaves of the tropical Indigo plant (Indigofera), or from woad (Isatis tinctoria), or the Chinese indigo (Persicaria tinctoria). Many societies make use of the Indigofera plant for producing different shades of blue.

Is indigo more blue or purple?

The truth is, the color indigo is more blue. It is three-quarters blue and one-quarter purple. ... On the color wheel, indigo sits halfway between violet and blue. Violet is halfway between blue and purple.