+Indigo is a deep, rich color, often associated with the twilight sky or the ocean's depths. Historically, it was a prized [natural dye](/wiki/natural_dye) derived from plants, yielding a distinctive [blue](/wiki/blue) hue.
+## See also
+- [Color](/wiki/color)
+- [Dye](/wiki/dye)
+- [Pigment](/wiki/pigment)
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