A study was conducted to examine the effect of the color stereoscopic phenomenon on the motor performance of novice long jumpers. Experiment 1 examined, by the paired comparison method, how differently the distance from the start point of approach (18 meters from the front edge of the board) to the take-off board was recognized according to changes in the colors of the take-off board and board markers. The results indicated that the most advancing color of the take-off board and board markers was yellow, followed in order by white, red, blue, gray, green and black. In Experiment 2, the effect of the color stereoscopic phenomenon on long jump motor performance was examined. Thirty male university students were randomly assigned to perform under one of two conditions: the take-off board and board markers in chromatic colors (yellow, blue or green) or with those in achromatic colors (white, gray or black). The results indicated that the color stereoscopic phenomenon had no significant effect on motor performance under either the achromatic color condition or the chromatic color condition. In Experiment 3, we examined the effect of the color stereoscopic phenomenon on long jump motor performance immediately after changing the color of the take-off board and board markers. 1) Under achromatic color conditions, the color stereoscopic phenomenon had no significant effect on long jump motor performance. 2) Under chromatic color conditions, for the jumps immediately after the color of the take-off board and board markers had been changed, some influence of the colors on motor performance was recognized. For the jumps immediately after colors of the take-off board and board markers had been changed from advancing (yellow) to receding (green), the steps of the approach and effective jump distance were longer than those for the jumps immedi-ately after colors of the take-off board and board markers had been changed from receding to advancing. These findings suggest that colors have some influence on distance (depth) perception in a long jump situation under limited conditions.