What Colour is Indigo
The color of indigo is a cross between violet and blue. Depending on the color spectrum, the color indigo can look more like a purple color or a blue color. You can find more information here: http://en.wikipedia.org/wiki/Indigo
Indigo is a mix between dark blue and violet. Indigo symbolizes wisdom and self mastery and responsibility. Some people find that this color is helpful for studying.