http://durgan.org/2017/July%202017/22%20July%202017%20Indigo%20Ruby%20Tomato/HTML/ 22 July 2017 Indigo Ruby Tomato This unique tomato is producing fruit which is in the growing stage not yet ripe. At first glance they look like eggplant with a jet shiny black color at the portion exposed to Sun and perfectly spherical. The underside not exposed to Sun is still green. Closely related to Indigo Rose Tomato. http://extension.oregonstate.edu/gardening/purple-tomato-debuts-indigo-rose Indigo Rose The Indigo tomatoes will be purple where exposed to light and they tend to have a purple to black crown. They are ripe when their color changes from a shiny blue-purple to a dull purple-brown. The fruit also softens similarly to regular tomatoes, and the bottom of the tomatoes will turn from green to red when ripe.