| Indigo | Sable | |
|---|---|---|
| Meaning | Deep blue-purple dye | black |
| Origin | English | english |
| Gender | Unisex | Unisex |
| Pronunciation | IN-dih-goh | SAY-buhl |
| Syllables | 3 | 2 |
| First appeared | 1971 | 0 |
| Peak year | 2025 (318) | 1986 (181) |
| In 2025 | 318 | 0 |
| Trend | Near its peak | Vintage |
Source: US Social Security Administration.
| Decade | Indigo | Sable |
|---|---|---|
| 2020s | 1,693 | 197 |
| 2010s | 1,148 | 175 |
| 2000s | 597 | 221 |
| 1990s | 565 | 503 |
| 1980s | 12 | 560 |
| 1970s | 5 | 0 |
| 1950s | 0 | 12 |
| 1940s | 0 | 11 |
| 1930s | 0 | 12 |
| 1920s | 0 | 11 |
Indigo names the deep blue-purple dye and colour, from the Greek for “Indian.”
A word-name from 'sable', which in heraldry denotes the colour black; derived via Old French from the dark-furred sable marten. Note: a vocabulary name, with the 'black' meaning coming from the heraldic term.
Indigo is more popular than Sable today: about 318 US babies were given the name Indigo in 2025, compared with 0 named Sable.
Indigo means Deep blue-purple dye (English origin), while Sable means black (english origin).
In US records, Indigo first appears in 1971 and Sable in 0, so Sable has the longer recorded history.