The color of indigo is dependent on its environment. ... In most common situations (in solution, solid state or applied as a dye to fabric), however, indigo shows its characteristic blue color. This blue color arises due to absorption at relatively long wavelengths (600–675 nm) in the visible region.

Why is it called indigo blue?

Indigo is a deep color close to the color wheel blue (a primary color in the RGB color space), as well as to some variants of ultramarine, based on the ancient dye of the same name. ... The word "indigo" comes from the Latin for Indian as the dye was originally exported to Europe from India.

Does indigo mean blue?

Indigo is a color that combines blue and violet. It has a strong association with the New Age and magic rituals, so it's a color with a lot of spiritual meaning. Let's take a look at what can indigo mean. Indigo can boost up the perception a person has of things and encourage unconscious processes, such as intuition.