Here's how natural indigo is still grown and fermented in Japan, despite the fashion industry's dependence on synthetic dyes.

As production scales, the cost differential with traditional ... and continues now as we work to develop a complete range of indigo shades," Williams said. Orta developed the fabrics.

“It has no justification in experiment exactly; it just represents something that he’s imposing upon the color spectrum by analogy ... two colors—orange and indigo—corresponding to half steps in the ...