Colors are an integral part of our lives, and we see them all around us every day. By radiating their wavelength, they can affect our mood, opinion, and even choices. The development of children's art does not begin with the use of colors, but when a child learns about color as one of the artistic elements, he is happy to express himself with it. In the beginning, the child only draws with color, and later he shows colored surfaces with more and more details. The use of color in children's art can sometimes be influenced by the environment that surrounds it. How color affects people in general and children themselves will be shown in the following chapters. We will also look at the entire children's artistic creativity and developmental stages that a child goes through and describe in more detail when and how children's expression of color begins. In the research of children's artistic expression, we should pay attention to the emotions that a child can express through his / her art. The research conducted in three kindergarten groups of children tried to check whether the children will use mostly warm and chromatic colors when listening to a song with dynamic and cheerful content in their art works, or will they use mostly cold colors in their art works when listening to a song with melancholic content. The sample of respondents is N = 49, and the analysis of the results, the hypotheses, proved to be accurate. At the end, some of the children's art works created during the research and their analysis are presented.