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Indigo is a shade of blue, more specifically, purplish blue or dark blue. Isaac Newton named and defined indigo as a spectrum color when he divided up the spectrum into the seven colors of the rainbow. The spectral range of indigo is between 450 and 420 nanometers.
The term "indigo" can refer to the color of the dye, various colors of fabric dyed with indigo dye, a spectral color, one of the seven colors of the rainbow as described by Newton, or a region on the color wheel, and can include various shades of blue, ultramarine, and green-blue.
12 Ιουν 2024 · Indigo, an important and valuable vat dyestuff, obtained until about 1900 entirely from plants of the genera Indigofera and Isatis. Indigo was known to the ancients of Asia, Egypt, Greece, Rome, Britain, and Peru. It is used in the United States mainly for dyeing cotton for work clothes; for a long.
7 Νοε 2011 · 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...
24 Μαρ 2024 · Indigo is an enigmatic color, often described as the deeper end of the blue spectrum with a hint of violet. Its character is reminiscent of the twilight sky, a blend of the deepest blue of nightfall tinged with a subtle violet hue.
28 Ιουν 2022 · Indigo, a deep color that sits between blue and violet on the spectrum, is often associated with intuition and perception. It’s a color that invokes a sense of deep calm and clarity, reminiscent of the twilight sky. As a color expert, I see indigo as representing wisdom, honesty, and authority.
1. : a deep reddish blue. 2. : indigo plant. 3. a. : a blue vat dye obtained from plants (such as indigo plants) b. : the principal coloring matter C16H10N2O2 of natural indigo usually synthesized as a blue powder with a coppery luster. Examples of indigo in a Sentence.
