From the web:

During the early stages of the Model T production, the car was available in almost any colour, except black. In fact the very first model came in red. Later models of the Ford Model T came with a variety of colours such as green, bright red, dark blue, maroon, brown, grey and of course black.

The car was only offered in black from 1914-1925, however before and after that various models of the vehicle could be purchased in a variety of colors including blue, red, grey, and green.

From 1908 to 1914, Model T Fords were painted in a variety of 4 to 5 available colors. All colors of were of darker shades. Interestingly enough, black was not offered as a color initially. However, from 1914 to 1926, all Model T Fords were indeed painted black.