本研究目的在探討色彩情感在室內照明的應用，及探討色彩情感評價量尺的文化差異，為了達到此目的，本研究進行一心理物理實驗，將色彩情感實際應用在室內照明環境中，探討燈光色彩對空間內使用者心理感受的影響及對臉部皮膚外貌的影響，並利用實驗的樣本的實驗結果，分別做出9個量尺的預測模型。
在一實體空間中利用RGB LED 燈具改變光色，測試色彩包含25種白光及15種色光。共有20位東亞人及10位高加索人參與實驗，受測者在每個測試色彩中需回答4個空間評價量尺（喜歡的、明亮的、緊張的、暈眩的）及5個臉部皮膚外貌量尺（平滑的、自然的、年輕的、陰柔的、喜歡的）。
依實驗結果可知，空間評價及臉部皮膚外貌不會明顯地受文化差異影響。受測者喜歡待在負值Duv搭配高色溫（5000 K和6500 K）的白光環境，當光源為負值Duv時，臉部皮膚會看起來比較年輕、平滑和自然的。在藍光、綠光的環境中，皮膚會看起來蒼老、又粗糙又陽剛，在紅光和紫光的空間裡，皮膚會看起來平滑又陰柔。當環境光源的純度越高，越容易感到緊張和暈眩，膚色看起來不自然，讓人顯得蒼老。
總結，環境光源的色溫、Duv值、色相及純度對空間情感及臉部皮膚外貌具影響性，本研究結果可實際應用在白光與色光室內照明空間，作為照明設計的參考依據。

This paper attempts to clarify colour emotion for interior lighting design and indicate which colour emotion responses are culture-independent. To do this, a psychophysical experiment was carried out to assess colour emotion for interior lighting regarding its influences on visual impression of the room and of facial skin.
The study used RGB LED lamps to light an entire experimental room. There were 40 light colours , consisting of 25 white lights and 15 coloured lights. Twenty Far-East observers and ten Caucasian observers participated in the experiment. Observers were asked to rate the room in terms of 4 scales “liking”, “brightness”, “tension” and “dizziness” and observer’s own facial skin in terms of 5 scales “smooth”, “natural”, “young”, “feminine” and “liking”.
Colour emotion used in this study show consistent results across Far-East and Caucasian observers. For white lights, indicate that observers tended to prefer white lights having negative Duv and high CCT (5000 K and 6500 K) and facial skin tended to look young, smooth and natural at negative Duv. For coloured lights, blue and green lights tended to make the facial skin feel old, rough and masculine, while red and purple lights tended to make it feel smooth and feminine. The higher the purity, the more tense and more dizzy the room tended to feel, the less natural and less young the facial skin tended to appear.
According to these findings, it is fair to say that colour emotion has a systematic tendency when examined by CCT, Duv, hue region and purity. Results of this study will help develop guidelines for interior lighting design based on either white lights or coloured lights.

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