Colors have so many social and cultural meanings that most of us are probably unaware that those meanings subconsciously bias us as designers when we talk about color in health care environments. Designers talk about “cool”, receding colors such as blues that are “ideal” in health care settings, because they are “calming”. Or, they’ll say that reds are “active” colors that are best left to pediatric play areas, for instance. Yellows and oranges are “warm” and “cheering”. These hues begin to sound as though they actually have inherent personalities!
Is there any science behind these statements? Does any evidence underlie some of the commonly read ideas about color in design, especially as it relates to ideas about whether or not color has an impact on human behaviors, medical outcomes or healing in health care settings? Perhaps this received wisdom has been repeated so often that designers take it as a given without really questioning its validity or examining the cultural and social lenses through which we view these ideas about color and about its presumed psychological and behavioral effects.
In 2004 the Coalition for Health Environments Research sponsored and funded a survey of all literature that addressed color in health care environments, reviewing over 3000 citations on the subject. The goal was to separate common myths from truths and develop theories that could be helpful to designers, architects, health care practitioners, caregivers and patients. The study’s primary results, quoted below, were, to say the least, humbling.
“The results of the critical review of the pertinent literature produced no reliable explanatory theories that may help to predict how color influences people in healthcare settings.
Regrettably, much of the knowledge about the use of color in healthcare environments comes from guidelines that are based on highly biased observations and pseudo-scientific assertions. It is this unsubstantiated literature that serves color consultants to capriciously set trends for the healthcare market.” (Abstract, Color in Health Care Environments, Coalition for Health Environments Research (CHER), Ruth Brent Tofle, Ph.D., Benyamin Schwarz, Ph.D, So-Yeon Yoon, MA, Andrea Max-Royale, M.E.Des, July 2004)
The study’s six conclusions were that:
- There is no cause and effect between certain colors and medical outcomes.
- Results do not substantiate the view that specifying certain colors for health care environments has a bearing on the emotional or mental state or behavior of individuals. “Spaces do not become ‘active’, ‘relaxing’, or ‘contemplative’ only because of their specific color.”
- Although moods are associated with certain colors, this is not because the colors themselves inherently produce these moods. Instead, the moods evoked by certain colors are a function both of how different cultures teach color-mood associations and of the psychology and physiology of people.
- Devising universal guidelines to the use of color in health care environments is misguided, because of the diversity of groups and sub-cultures using these environments and the complexity of difference in “meanings and communication”. In other words, a designer could specify a color based on some arbitrary universal guideline that could completely mystify the user for whom it was intended, or worse, that the user completely misinterprets with unpredictable — negative — results.
- Understanding color in health care environments inevitably is challenging due to the multiplicity of meanings, settings and situations. A human being’s aesthetic cognition of objective color is filtered through their culture and modified by their physical condition and the situation in which they find themselves. So, other environmental factors, such as odors, clutter, lighting, noise, can influence their cognition of color. If they’re not aware of where they are, anxious, under the influence of medication or experience a psychological disorder, their emotional and mental state will also influence how they experience — or don’t experience color.
Perhaps these results are not surprising. To a designer, however, they are somewhat disheartening, because designers use color so much in their work, and color does enhance all sorts of environments. What this study is saying, however, is that while the enhancement of a physical interior environment by the artful use of color in wall paint, fabrics, art work, floor coverings and other materials is a positive endeavor in designing health care environments, it is ill-advised to set universal guidelines, which are not based on real evidence.

Pallas cubicle curtain fabric, Provence in Butternut
A color in and of itself does not change someone’s mood. To the extent that it does influence a person’s mood, it is more because of who the person is, their own psychology and culture and perhaps, because of other aspects of the environment that are wholly unrelated to color. A 2010 University of Minnesota study by Kwon Jhain, Ph.D. entitled “Cultural meaning of color in healthcare environments: A symbolic interaction approach” addresses just this matter: how health care color concepts depend on the person’s cultural background and personal experiences. It is challenging to tease out the color-mood cause and effect when there are so many other conditions of the designed environment that can influence mood and behavior.
Fortunately, the study does not suggest that we give up and not move forward in studying color in health care environments, including waiting rooms. “Clearly, the research of color in healthcare environments is an important endeavor. Yet, the subject matter is complex and multifaceted. Furthermore, mastering this knowledge for the application of research findings in healthcare settings requires caution and sensitive creativity is paramount.”
This is what evidence-based design does best. It breaks through myths to get at the truths that we sometimes don’t want to acknowledge. I’m not against bringing color to waiting rooms and other health care settings. But, it’s heartening to know that there are no “rules” and thus no rules to break. This is freeing to a designer and to anyone thinking about using color, which is a marvelous tool, in all sorts of waiting areas.
So while the study sponsored by CHER may be definitive, there is no harm in taking in and having fun with the color ideas promoted in Formica’s HEALTHCARE “Trend Report” from 12/09 — always with a grain of salt, of course, and always understanding that commercial trends are simply that. No more, no less.