2020 Volume 44 Issue 3+ Pages 180-
This research aim to investigate the boundary of Thai tea color. The experimental room was divided into 2 parts. First part, a monitor was placed inside. This monitor was used to display the color. Second part was a subject room. The 25.5 x 25.5 cm gray paper was placed on the wall between two rooms. There is a 5 x 5 cm aperture at the center of this gray paper. The subjects were able to see the result color through this aperture. The subjects were asked to identify Thai tea color by select from color mixing. Each subject was asked to perform the task 3 times. The result showed that the boundary of Thai tea color was identified in the orange region.
