Blue tomato

As of the 2012 growing season, Oregon State University developed blue tomato seeds became commercially available under the cultivar name "Indigo Rose".

In September 2022, the Norfolk Plant Sciences Purple Tomato received USDA approval for distribution in the United States.

[10] Many other tomato cultivars have names indicative of their dark color, such as Black Krim and Cherokee purple.

These colours come from an altogether different process, whereby the chlorophyll is not efficiently degraded resulting in the accumulation of the pigment pheophytin in the fruit.

[11] This pigment combined with other carotenoids in the fruit, including beta-carotene and lycopene, produces a brown or black color.