Hibiscus
A flower source of anthocyanin, which results in a bluish-red shade. Most commonly occurs as a form of tea, which produces a pinkish-red shade.
Hue
The shade of a colorant, such as yellow, blue, or green.
Hue angle
Mathematical term referring to where a shade falls within a 360 degree color space based on a colorimeter reading. See also Colorimeter.
Huito
A fruit source (Genipa Americano) of compounds that when stabilized with a protein produce a blue color. Huito is not currently allowed for use in the USA.