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 ...
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 ...
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