Brilliant blue

Brilliant blue is a shade of blue, or may refer to:

Color

 * RAL 5007 brilliant blue, an RAL color

Chemicals

 * Brilliant blue FCF, a dye
 * Brilliant cresyl blue, a stain used in microscopy
 * Coomassie brilliant blue, a dye
 * Remazol Brilliant Blue R, a dye

Entertainment

 * "Brilliant Blue", a side B song on the single "Kyū Jō Show!!" by the Kanjani Eight
 * Brilliant Blue (manga), a manga
 * Daphne in the Brilliant Blue, a manga and television series

Butterflies

 * Junonia rhadama, a butterfly of islands in the Indian Ocean
 * Lepidochrysops asteris, a butterfly of South Africa