Catherine McKinley traveled through nine West African countries a decade ago to track the history of indigo, the blue dye that was made very valuable by the African slave trade. Host Michel Martin ...

“I prefer to talk about a substance rather than a colour,” says artist Aboubakar Fofana, who has worked with indigo for nearly 40 years. A wide range of intense blues can be obtained from the indigo ...

Why the colour indigo is disappearing from Sir Isaac Newton's 'occult' rainbow 'The only reason Newton came up with 'indigo' is because for occult reasons he believed there must be seven basic ...

From the Arvind-Indigo Museum comes an exhibition that explores different hues of the dye .Alchemy opens to the public this week at the existing family-run Kasturbhai Lalbhai Museum in Ahmedabad ...

Host Michel Martin speaks with McKinley about her book Indigo: In Search of the Color that Seduced the World. Catherine McKinley traveled through nine West African ...