As such, there are no rules or guidelines for hospital signage color. However, the use of colors as visual cues is a proven way to enhance wayfinding efficiency. Various studies have shown that cool colors like the blues and the blue-greens are more calming, so these colors soothe eyes and put people at ease because they bring a sense of tranquility. Bright colors such as red and yellow, on the other hand, tend to raise anxiety levels or put on alert mode and must be reserved for hospital safety signage. Children's Room Signs can be vibrant, though, because yellows and oranges may help the younger patients feel a little more cheerful, reducing their stress and anxiety. From bright orange to soothing Gray, we offer 17 different color options with our Select-a-Color Engraved Sign. Colors work well when there is adequate contrast between the background and any colors used for text and pictographs.