A plain fruit name
Banana is a soft, slightly dull yellow. We found no color book or official standard that defines #E3CF57, so the name simply describes the fruit. This site also lists a brighter banana yellow, #FFE135. More yellows are on the shades of yellow page.
Why ripe bananas turn yellow
The yellow peel most shoppers know comes from ripening at about 18 °C (64 °F). Wikipedia's banana article notes that Cavendish bananas ripened above 27 °C (81 °F) stay green. The word banana probably came from West Africa, maybe from the Wolof word banaana, and reached English through Spanish or Portuguese.

