Indigo dye or love and affection
In a Japanese context, Aizen is often associated with the 'Aizen Myoo', a Buddhist deity of love and passion. The name can also refer to 'indigo dye' depending on the kanji used. It has gained modern recognition through popular culture.
About 199 boys were named Aizen in 2025.
US births per 5-year period, 1990–present (SSA data).
The primary antagonist and former captain in the Soul Society · Bleach
