The name of the cultivar is 'Indigo Rose'.
The origin of the cultivar is Peru. It has therapheutic value to people, beside nutrutional.
From an article about Tomate Azul:
(http://www.elhuertodelabuelo.es/es/tomates/36-tomate-azul.html)
Este es el tomate original , lanzado en 2012 por el Dr. Jim Myers de la universidad estatal de Oregón. Utilizando métodos convencionales de mejora mediante cruces con tomates silvestres de Perú y de las Islas Galápagos, para obtener su color púrpura profundo rico en Antiocianina. La Antiocianina es un poderoso antioxidante que nos protege de muchas enfermedades y del envejecimiento prematuro. El Tomate Azul, desarrolla el color morado oscuro en aquellas zonas de la piel que reciben directamente la luz solar, pero es necesario que madure completamente para percibir todo su sabor. No está maduro hasta que el fruto se ablanda, el fondo cambia de verde a rojo, y en el interior el color de la carne es rojo oscuro. Producción media de frutos redondos de 60-75 grs. De peso. Planta de porte indeterminado. Recolección a partir de 75 dias.
Translation: (feel free to correct it)
This is the original tomato, launched in 2012 by Dr. Jim Myers of Oregon State University. Using conventional methods of improvement through crosses with wild tomatoes from Peru and the Galapagos Islands, to obtain its deep purple color rich in anthocyanin. Anthocyanin is a powerful antioxidant that protects us from many diseases and premature aging. Tomate Azul develops the dark purple color in those areas of the skin that directly receive sunlight, but it is necessary that it ripens completely to reach its full flavor. It is not ripe until the fruit softens, the background changes from green to red, and inside the color of the flesh is dark red. Average production of round fruits of 60-75 grams. Of weight. Plant of indeterminate size. Collection from 75 days.
From the biography of Dr. Jim Myers:
I have developed and released 13 dry bean, one green bean, and four tomato cultivars. One tomato cultivar (co-released with Dr. J.R. Baggett) is ‘Legend’, an early, large fruited, parthenocarpic, determinate slicer with late blight resistance. My graduate students and I were the first to create high anthocyanin tomatoes using conventional breeding approaches. The first release of this kind – ‘Indigo Rose’ has been available in the U.S. since 2012 and is now moving into global markets. ‘Indigo Cherry Drops’ and Indigo Pear Drops” are two new Indigo cultivars that have been released and more are in the pipeline.