Indigo is the deep blue dye and color whose name comes from the Greek indikon, "from India", where the plant was first grown and traded. As a given name it is a modern color choice alongside Violet and Scarlett, and the name spans the sexes, though girls now outnumber boys. Indigo has risen steadily for girls, from number 1747 in 2015 into the top 1000 in 2021 and up to number 854 in 2025, its best rank to date.