Meaning of Indigo. Latin-American name. In Latin-American, the name Indigo means-dark blue.The name Indigo originated as an Latin-American name. The name Indigo is most often used as a girl name or female name.Latin-American Name Meaning-dark blue.eaning of Indigo. Latin-American name. In Latin-American, the name Indigo means-dark blue.The name Indigo originated as an Latin-American name. The name Indigo is most often used as a girl name or female name. Latin-American Name Meaning-dark blue.