The importance of color emotion is increasing in various fields. In particular, the warm-cool emotion of the color is used as one of criterion for classifying colors in detail. It is well known that warm-cool emotion is mainly affected by hue. The purpose of this study is to investigate the effect of chroma and lightness on warm-cool emotion of color. The psychophysical experiment was conducted using an LCD display in a darkroom environment,. Two color groups (red and cyan) consisting of 12 color patches having different levels of lightness and chroma were selected as the test colors. ,. For pair-comparison evaluation, two test colors were randomly selected from the same color group and the participant was asked to select the warmer or cooler color . Eighteen men and women in their 20s with normal color vision participated the experiment. Then, z-scores of test colors were calculated assuming Thurstone’s Case V to compare with the lightness and chroma predicted using CIECAM02 color appearance model. As a result of the experiment, the warm or cool emotion of the color was evaluated to be greater as the chroma increased within the same color, and it was found that colors feel cooler as the lightness increased and warmer as the lightness decreased. these results suggest the need to develop a warm-cool model considering not only hue but also lightness and chroma.