People are more likely to tell you that blue is their favorite color than any other shade. That makes it a safe choice. Seeing blue also brings thoughts of trustworthiness to mind; always a good thing.
They do affect. Many colors have been associated with certain actions/procedures. Among my colleagues, as teachers, I have not seen one of us corrects and checks his students' papers in other than red color.
Yes it does. People react very emotional to the wide range of different colors. By looking at one we connect it with our memories to associate the color with personal experiences. Especially for marketing activities colors are perfect to arouse emotions.
Colors affact me greatly. I like almost all colors, however in most cases I were clothes in combination of black, white, gray and red. Green is also my favorite, ocean green. The preferences might be altered. This depends on your age, fashion trends, on mood and, of course on finances. When one can have many coats, he, she can choose items of different colors, when you can buy only one, of course it should be black. But choosing color depends on national tastes as well. In Georgia favorite color is black.
Colour and light of the workplace also had an influence on the mood of persons working there. The workers' mood was at its lowest when the lighting was experienced as much too dark. The mood then improved and reached its highest level when the lighting was experienced as just right, but when it became too bright the mood declined again.