The Effect of Analogous Colors, Saturation and Brightness of Exterior Lighting on Visual Perception: A Case Study of Holy Rosary Church, Bangkok

Abstract

The purpose of this study is to compare visual perception including peace, eye-comfortable, relaxation and satisfaction for the exterior analogous colors lighting with different saturation and brightness level of insiders and outsiders. The saturation and brightness level are 4 styles, namely saturation 100% (none brightness), saturation decrease 50% (none brightness), saturation 100% with brightness increase 50% and saturation decrease 50% with brightness increase 50%. This study are based on 50 insiders and 50 outsiders, the insiders are Catholics, the workers in temple or peoples living near the church, while the outsider are tourists, excursionists, and others. The result focused on color schemes showed that blue light on façade and blue green light on archivolt have a strongest effect on eye-comfortable, relaxation and satisfaction of insiders, while yellowish orange light on façade and yellow light on archivolt have a strongest effect on all visual perception of outsiders. According to the results, this study could be applied to church exterior colored lighting or similar buildings design including saturation levels, brightness levels, analogous color schemes, and different groups for creating atmosphere affected on peace, eye-comfortable, relaxation and satisfaction.