This study is an attempt to propose both fundamental data for color guidance of townscape ordinance and guidelines for color design of architecture. Psychological experiments were carried out for gathering data on evaluations of exterior colors of buildings and those of billboard towers ; a scale-model of street view being utilized, the above townscape elements were judged as the mode of surface color. The ranges on acceptable chroma of the townscape elements were shown by using these data as a basis. As the ranges are considerably influenced by hue and chroma, careful steps should be taken.
