There is a growing amount of evidence to suggest that we are all affected by colours, and the ones we choose could even influence how we think and act. Some psychologists are now so confident that colour-coding people pays off, that they use colour tests to help employers recruit new members of staff.
As part of the tests, experts hand patients a whole series of coloured cards, and ask them to put them in order of preference. The sequence of colours chosen is particularly important. For example, some experts believe that an individual who picks grey and then red is probably not very trustworthy. Other colour experts study the colour of an individual's clothes and even the colour of the ink in his or her pen. Use red ink and you'll be branded as pig-headed. Use violet ink and the psychologist will put you down as dominating. But colours aren't just used for making diagnoses about people. They are also used for treatments.
Many articles taken from 'A word with the doctor', by Dr. John Windsor.