Blue is often associated with calmness and a relaxing atmosphere. Blues and purples have short wave lengths that can relax and calm us. So we have the science associated with this calming effect.
From a psychological aspect there are several associations to blue. We associate blue with reliability and the flow of communication. Without some blue in our lives to help with the flow of information or communication and energy we will end up feeling a level of frustration and lack of progress in our activities.
As with other colors, there are several shades of blue we can consider. In Feng Shui blue with undertones of green can inspire confidence. They represent new beginnings. Deeper blues bring wisdom. I was surprised to learn that indigo, a dark blue, is a secondary color of mourning in the Chinese culture. A good thing to know if your work with colors includes working with a wide range of cultures.
Blue also represents the Water element in Feng Shui. So if blue isn't your color you can still have the influence of the water element with the inclusion of artwork that shows water, such as the image above. Even the way water is represented in the artwork is to be considered. Is it going to be in a place with a lot of energy? Then crashing waves might be a good choice. But if the room is one where you want calmness then the photo above is a good choice. You might even consider including a few seashells in your decor to bring out the water element. Maybe a few scattered around or a collection in a clear vase would work for you.
Another fun way to include the water element and ultimately the color blue would be to include a small water fountain in your home or office. Not only are they pleasant to hear, but they can also add much needed humidity to dry winter air.
Take a moment to look around your home. How have you included the color blue or the water element? If you haven't do you think you will try to bring it into your home?