Research by Choi and her team indicates that a lot of walls in video conference centers and other locations should be painted warm colors. As they detail, their data, collected in the US and South Korea, indicates that “an anonymous person against a warm color background (vs. neutral and cold color background) is perceived to be one with warmer personality.” In addition, “nurses’ perception of warmth from a hospital’s ambient color affects their favorable judgment of the hospital and intention to take on an extra role.”
Jungsil Choi, Young Chang, Kiljae Lee, and Jae Chang. 2016. “Effect of Perceived Warmth on Positive Judgment.” Journal of Consumer Marketing, vol. 33, no. 4, pp. 235-244.