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Royal blue or a deep dark blue is what is usually considered to be indigo. Indigo comes from a plant in India known as the indigo plant. This color symbolizes power and wealth. You
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Indigo is an extremely deep color of blue with a hint of purple in it which seems to make it even darker. Indigo is so dark it can be compared to the color of the night sky. It is
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Indigo can be described as a deep blue/purple color, similar to the color, blue-violet.
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