What impact does blue have on us?
The colour blue has a relaxing and inspiring impact, blue is peaceful and refreshing, it has an expansive and ethereal effect on us.
Blue reminds us of faraway places and distance, of the sky, the clouds and the sea, blue conveys lightness and invites us to dream.
Blue helps us in the process of developing ideas and thoughts.
Blue spreads an air of peace and conveys trust / protection.
Blue stands for communication and encourages contact.

Darker blue is authority and strength, it radiates a kind of dignity.
Blue is helpful for insomnia, nervous problems, shock and for lack of confidence.
Blue is used largely in offices and studies, as it nurtures the process of learning and thinking. It is also at home in bedrooms and rest rooms.

The colour blue
Blue: Serene and inspirational - a magical colour that can either animate, or relax you. Blue may or may not 'feel' cold: The quietude conveyed by a pale blue is reminiscent of an endless summer sky, inspiring us with thoughts of infinite space and tranquility. The electrifying vitality of both aquamarine and cobalt blue on the other hand, affects us in a more stimulating, refreshing way. A bold navy blue, or a jeans-blue are timeless classics.

A warm blue
Different tones of blue have different temperatures; supposedly, the combination of several tones of blue within the same room brings out the coolness of this colour. Design concepts for a warm interior involving blue can be achieved with natural, warm tones such as Matisse, royal, turquoise, ultramarine, or lilac blue. You should not disregard blue out of concern about the exceedingly cool effect the colour may have on a room.
Some shades of blue are meditative and convey a sense of vastness, others are vitalizing while others again show refinement. In formulating your colour scheme, consider the beauty of these flowers and let the tranquility of nature permeate your home. Create a maritime atmosphere by combining the intense blue of ocean and sky with lighter shades of blue, such as those found in Greek fishing villages or the Caribbean. Alternatively, you could work with a more Mediterranean azure.

These warm tones of blue will recall both the sun and the intensive light of more southerly realms. A blue ambience also represents insight and the ability to learn.

Therefore, a study held in blue can promote learning and facilitate thought processes. Blue is especially well suited for bedrooms - the colour promotes deep and restful sleep. The combination of blue and white is a proven one, it is never out of place and always looks friendly and fresh. Juxtapose tones of blue with orange every now and again; orange and blue are complimentary colours. This combination as well as those with yellow, red, or earth tones will warm-up any blue colour scheme. In concert with other colours, blue is surprisingly uncomplicated. To achieve a balanced colour scheme, combine a steel blue with an off-white, a royal blue with an emerald green, a light blue with a primrose yellow, jeans-blue with a salmon tone, or ultramarine with gold.