Anthocyanin
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Anthocyanins, also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, pink, purple, blue, or black. In 1835, the German pharmacist Ludwig Clamor Marqua
Anthocyanins give these pansies their dark purple pigmentation.
Cross-section of red cabbage
Aronia berries (Aronia melanocarpa), a rich source of anthocyanins
Reds and purples of autumn leaves of the European bilberry result from production of anthocyanins.
Betalain
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Betalains are a class of red and yellow tyrosine-derived pigments found in plants of the order Caryophyllales, where they replace anthocyanin pigments. Betalains also occur in some higher order fungi.
The red color of beets comes from betalain pigments.
Swiss chard, showing one plant expressing yellow betaxanthins and another expressing red betacyanins
Flowers of the cactus Mammillaria sp. contain betalains.
Inflorescences of Amaranthus caudatus (love-lies-bleeding) contain large quantities of betacyanins