Dyed blue orchids are popular—but the colour is artificial. Real blue orchids are rare. Learn what makes popular blue orchids ...

The hateful eight? The US Food and Drug Administration announced a plan Tuesday to phase out eight petroleum-based synthetic ...

The ridges of the mortar in between the bricks emit a blue hue, the color of the ocean: indigo, a name that refers to the shrub, the dye the plant produces and the color itself. This crumbling ...

breathing new life into the deep hue known as Japan blue. He shares his thoughts on innovating indigo. He's dedicated to the ancient technique of using the leaves of the indigo plant to dye ...

People have been wearing blue jeans for centuries. Originally, the blue color came from a natural indigo dye. The dye was chosen for the way it interacted with cotton. When heated, most dyes ...

The high-quality indigo dye created in Tokushima is famous for its deep hue. The indigo plants are grown and harvested by a master craftsman. The leaves undergo a traditional process of long ...