November 7, 2013 @ Slate
When businessman Harry N. Allen launched the New York Taxicab Company in 1907, introducing the city’s first fleet of gasoline-powered cabs, his imported French vehicles were equipped with “taximeters” to charge fees based on mileage, manned by drivers dressed like West Point cadets—and originally painted red and green.
In 1915, Chicago entrepreneur John Hertz (of future rental-car-company fame) opened the first Yellow Cab Company in his city. To unify his fleet, Hertz had commissioned a local university study to “scientifically ascertain which color would stand out strongest at a distance,” per his biographer—and yellow won. (Color researchers still agree that yellow is generally the most visible color, though some have suggested that it’s chartreuse that the eye most easily detects.)
But this often-told story ignores the fact that yellow taxis had already appeared in various American cities before 1915. Businessman Albert Rockwell was operating a fleet of yellow cabs as early as 1909, and he went on to incorporate the Yellow Taxicab Co. in NYC in 1912. If Hertz chose yellow for scientific reasons, legend has it that Rockwell was merely appeasing his wife Nettie, who preferred the color.
Read all the article @ Slate