Female dreamers tend to be more sensitive to colors and details of arrangement than males, perhaps reflecting their patterns of interest in the waking state. ... For both sexes, the incidence of color in dreams was generally associated with ESP success. - Montague Ullman and Stanley Krippner with Alan Vaughan, Dream Telepathy, 1974
from website http://koti.mbnet.fi/oneira/color3.htm
looks to be an interesting read..but I think I need newer research
In 1951, Calvin S. Hall announced in Scientific American that 29% of dreams are
either entirely colored or have some little bit of color in them (Hall, 1951). Tapia, Werboff and
Winokur (1958) found that only about 9% of a sample of people reporting to the hospital at Washington University in St. Louis for non-psychiatric medical problems reported having colored dreams, compared with 12% of neurotic men and 21% of neurotic women. Middleton (1942) found that 40% of his college sophomores claimed never to see colors in their dreams, 31% claimed rarely to do so, and only 10% claimed to do so frequently or very frequently. Interestingly, Middleton found a similar percentage of his respondents to report hearing in color, 11% claiming they frequently or very frequently experienced colored hearing, 68% claiming they
rarely or never did.1 De Martino (1953) found that only 17% of his undergraduate respondents claimed to see colors in their dreams at least once a month.
Today, few researchers are interested in the incidence of color in dreams: for the most part they seem to take the presence of color for granted. From anecdotal reports and some recent surveys, it appears that popular opinion about the presence of color in dreams has undergone a corresponding change. In an informal poll conducted by America On-Line in 1999, 56% of respondents said they dreamed in color, 4% said they dreamed in black and white, 27% said they dreamed in both, and 13% said they did not know.2 In a similar survey I recently administered to undergraduates in the United States, I found very similar results: out of 67 respondents, 62% said they dreamed in color, none said they dreamed in black and white, 27% said they dreamed in both, none said they dreamed neither in black and white nor in color, and 15% said they did not know. I also attempted to replicate Middleton’s 1942 questionnaire, with very different results: whereas Middleton found 71% of college sophomores to say they ‘rarely’ or ‘never’ see colors in their dreams, I found only 18% to do so.
All that from website E Schwitzgebel - Studies in History and Philosophy of Science, 2002 - faculty.ucr.edu ...blah ok the link didn't transfer..just look that up via Google Scholar.