Colors are very important in everyday life, but also the children's artistic expression. By using colors, pupils express their personality, thoughts, and emotions. It is in the research interest to determine for which character from the fairy tale „Cinderella” the pupils will use warm, and for which cold colors, where two characters (Cinderella and stepmother) are given in mutual character contrast. It also determines which colors pupils associate with the four emotions: happiness, sadness, anger, and fear. The research was conducted in a children's playroom in the bowling alley „Klarić” and in an elementary school in the area of Slavonski Brod. The first part of the workshop involves using the watercolor art technique, while the second part uses the felt-tip pen art technique. The research sample consisted of fifty pupils from first to fourth grade, of which eight pupils attended first grade, twelve pupils second grade, fourteen pupils third grade, and sixteen pupils fourth grade. The research confirmed the expectation, and based on the conducted research, it was concluded that pupils more often choose warm colors when depicting people who provoke positive emotions and cold colors when portraying people who provoke negative emotions. Also, pupils choose warm colors to show positive emotions, and cold colors or achromatic colors to show negative emotions, except anger emotions.