I definitely think that colors influence us. One of the most fascinating things to me is that different colors have different connotations in different cultures. In some countries red may symbolize communism, in others it may connote danger. Apparently in India red is associated with purity. I would say that in Western culture white would be associated with purity. In China, white means deaths or mourning. That would be black in my culture. All of these factors play a role in advertising and packaging.

Check out this list of the meanings of colors: https://www.lifewire.com/visual-color-symbolism-chart-by-culture-4062177