A small yet fascinating study published last November in *LEUKOS* (the journal of the IES) suggests that the color of light in a room can influence listeners' emotional experiences of music—a finding with practical implications for the hospitality, wellness, and entertainment sectors, as well as other music-centric environments.
Researchers from Arizona State University, the California Lighting Technology Center at UC Davis, and Clemson University recruited 22 participants to experience four different lighting conditions: warm white (3000K), cool white (5000K), blue light (peak wavelength 455nm), and red light (peak wavelength 630nm). Participants listened to one-minute music clips pre-categorized as either cheerful or sad, then rated the music's positivity, how well it matched the lighting, and their satisfaction with the lighting itself.
The article details are as follows.
Barron Lighting
What the Data Shows
The most notable findings relate to cheerful music and warm white light. Participants rated cheerful music played under warm white light the highest, while rating cheerful music played under red light the lowest. Warm white light also received the highest overall satisfaction scores, suggesting a natural synergy between warm-toned light and upbeat, cheerful content.
For sad music, the impact of lighting on positivity ratings was generally smaller, with one exception: regardless of the music type, red light consistently resulted in the lowest ratings. While blue light received the lowest visual satisfaction scores, it was perceived as the best match for sad music.
Cool white occupied an awkward middle ground. It ranked second in overall satisfaction but performed poorly when paired with cheerful music—a mismatch that could have implications in commercial settings, where lighting tones are often fixed while playlists can be changed at will.
Implications
Given the small sample size, the study's findings warrant replication before anyone redesigns a showroom layout. The researchers have called for follow-up studies that incorporate biometric data—such as heart rate and skin temperature—to move beyond subjective evaluations and employ more objective measurement methods. However, this research raises a practical question that standards bodies and venue designers will ultimately have to address: as connected lighting systems become increasingly capable of dynamic color adjustment, should emotional context—including the content playing over the speakers—serve as an input factor alongside occupancy, daylight, and circadian schedules?
Hoteliers, experience designers, and wellness center planners may find these preliminary findings valuable even now. The conclusion is simple yet clear: warm lighting and upbeat music appear to complement each other, whereas red light seems to dampen mood, regardless of the music being played.
