The lighting environment is one of the indoor environmental factors that may influence creativity. The combined effects of illumination (300 lx vs. 2000 lx) and color temperature (3000 K vs. 6000 K) on mood and creativity were investigated in 24 participants. During exposure, participants completed questionnaires to assess their mood and lighting perceptions, performed creative and analytical tasks, and collected saliva samples for analysis of melatonin concentration. An interactive effect of illuminance and color temperature on the mood was observed. The participants performed better on the performance of Flexibility, Fluency and Originality in the verbal creative task when they expressed higher positive mood (at 2000 lx, 6000 K and 300 lx, 3000 K) and performed better on the performance of Resistance to closure in the figural creative task when they reported the lowest positive mood (at 2000 lx, 3000 K). Analytical thinking, including calculation and echoic memory skills, was facilitated at the lighting setting (300 lx, 6000 K) that induced the least affective intensity. No significant difference in melatonin concentration was observed. This evidence implies that the affective state of the occupants was influenced by light and that their creative performance was altered accordingly. These findings will help to elaborate a design guideline on the lighting environment according to the specific needs of different tasks.

照明环境是可能影响创造力的室内环境因素之一。在24位参与者中研究了照明（300 lx对2000 lx）和色温（3000 K对6000 K）对情绪和创造力的综合影响。在接触过程中，参与者完成了问卷调查以评估他们的情绪和光照感知，执行创造性和分析性任务，并收集唾液样本以分析褪黑激素浓度。观察到照度和色温对情绪的交互作用。当参与者表现出较高的积极情绪时（2000 lx，6000 K和300 lx，当他们报告最低的积极情绪（2000 lx，3000 K）时，在人物创作任务中的“抗拒闭性”表现更好。在感应强度最小的照明设置（300 lx，6000 K）下，有助于进行分析性思维，包括计算和回声记忆技能。褪黑激素浓度没有观察到显着差异。该证据表明，乘员的情感状态受到光线的影响，其创造力也相应发生了变化。这些发现将有助于根据不同任务的具体需求，制定有关照明环境的设计指南。在引起最小情感强度的照明设置（300 lx，6000 K）的帮助下。褪黑激素浓度未见明显差异。该证据表明，乘员的情感状态受到光线的影响，其创造力也相应发生了变化。这些发现将有助于根据不同任务的具体需求，制定照明环境的设计指南。在感应强度最小的照明设置（300 lx，6000 K）的帮助下。褪黑激素浓度没有观察到显着差异。该证据表明，乘员的情感状态受到光线的影响，其创造力也相应发生了变化。这些发现将有助于根据不同任务的具体需求，制定有关照明环境的设计指南。