There are many many pigments, and many variations of chemical composition. We must also distinguish between the types of paint in question (watercolors, acrylics or oils, dyes, etc).
Here are some common acrylic pigments:
Violets and purples can be Quinacridone, Cobalt, Dioxazine, Manganese, Mars (iron oxide), Permanent (Inanthadon/Quinacridone), Ultramarine (Polyulfide of Sodium-Alumino-Silicate), Medium Violet (Titanium Dioxide Rutile/Quinacridone), Light Violet (Carbzole Dioxazine/Titanium Dioxide Rutile/Quinacridone).
it changes to red and pink
It is a green pigment! :)
Yes! :-)
The color purple is a mixture of the colors red & blue creating a dark shade of violet color man and woman call purple.
purple
Anthocyanin is the pigment that give blue and red potatoes their color. The pigment ranges in color from red to purple to blue.
Purple and Red
it changes to red and pink
Anthocyanine
The red pigment is an anthocyanin; the color is purple in a neutral solution.
Because of the pigment family that makes up hair color, similar to melanin.
It is assumed that purple was Cleopatra's favorite color and in order to get this color, thousands of tiny mollusks or shell fish had to die as the pigment to make the purple dye came from their shells. However, as for purple being Cleo's favorite color, who knows? Purple was a royal color, used by kings and queens and rulers. Cleopatra certainly used the color to flout her authority, even on the sails of her ships, but if it were her personal favorite is unknown.
The pigment which determines skin color is melanin.
Rhodopsin or visual purple.
Purple and Orange
AudioEnglish.net states that "Purple" as a noun means 1. A purple colour or pigment; or 2. Of imperial status.
Green