Amaranth purple

Amaranth is a red ish-rose colour that is a representation of the colour of the flower of the amaranth plant. 
Types of amaranth.
Amaranth pink.
The color amaranth pink is shown. This color is the color of pink amaranth flowers.
The first use of "amaranth pink" as a color name in English was in 1905. 
Radical red (bright amaranth pink).
The Crayola crayon color radical red is shown at right.
The color "radical red", which is also called bright amaranth pink was made by Crayola in 1990.
This color is fluorescent, but there is no way to show fluorescence on a computer screen. 
Amaranth purple.
The color amaranth purple is shown. This color is what color purple amaranth are.
Amaranth deep purple.
Amaranth deep purple is a type of amaranth. 
Alizarin.
Alizarin is a type of amaranth.