Color, light & materials used to connect people with the site or locale; concepts symbolize identity to send a message.    
(e.g., color selection coming from the site for communing with the surrounding nature)

COMMUNICATION

Research

1. Using color as landmarks increases the readability of a space, Warm colors and high brightness level can facilitate memory of spaces (Hidayetoglu, Yildirim, & Akalin, 2012).

References

Hidayetoglu, M. L., Yildirim, K., & Akalin, A. (2012). The effects of color and light on indoor wayfinding and the evaluation of the perceived environment. Journal of Environmental Psychology, 32(1), 50–58. https://doi.org/10.1016/j.jenvp.2011.09.001