Moods represent one of the elements keys that help determine the behavior of people in their everyday life. The objective of this research is to define a theoretical basis that allows to relate moods with colors using color theory. Through color theory could be assign meaning for each of the colors and highlight the great influence of the same in the moods of the people. The research questions of this project are: 1) is it possible to apply Machine Learning techniques that relate the color theory with moods in older people? 2) What are the most relevant considerations when the Machine Learning is applied to the color theory? This theoretical basis will be used to design a software tool that allow the correlation of colors with moods in older people and make predictions about those moods.