Blue is one of nature's rarest colors. Indigo, a dye obtained from the tiny leaves of small parasitic shrubs that are part of the Indigofererearsa tribe, creates the bluest of blues. For almost five ...

You probably take the blue in your favorite jeans or denim bean bag chair for granted now, but it was once prized by slave traders, spiritual leaders, royalty and rag traders alike. A decade ago, ...

Indigo is something of a mystery. It sits between the more familiar purple and blue of rainbows. And it’s the elusive center of Catherine E. McKinley’s “Indigo: In Search of the Color That Seduced the ...