John Bramblitt is a blind painter:

For color, Bramblitt uses oil paint, which has proven critical to the process. While oil paint is messier, more pungent, and dries much slower than acrylics, it offers something that no other paint can: idiosyncratic viscosity. According to Bramblitt, “White feels thicker on my fingers, almost like toothpaste, and black feels slicker and thinner. To mix a gray, I’ll try to get the paint to have a feel of medium viscosity”. In fact, he has learned to recognize and mix all the colors he uses by his sense of touch. And the colors are the first thing one notices about Bramblitt’s work (www.Bramblitt.net). While the subjects of his paintings are immediately recognizable, proportioned, and smartly stylized, the colors are supremely vibrant, and nearly psychedelic in their rendering.

Check out Bramblitt's website for more images

Hat tip: Mind Hacks