Cover for IKEA KARLSTAD Two-seat sofa and chaise longue right Lido Blue. Blue is said to bring down blood pressure and slow respiration and heart rate. That is why it is considered calming, relaxing and serene, and it is often recommended for bedrooms and bathrooms. Be careful, however: a pastel blue that looks pretty on the paint chip can come across as unpleasantly chilly when it is on the walls and furnishings, especially in a room that receives little natural light. If you opt for a light blue as the primary color in a room, balance it with warm hues for the furnishings and fabrics. To encourage relaxation in the social areas ( family rooms, living rooms, large kitchens) consider warmer blues, such as periwinkle, or bright blues, such as cerulean or turquoise. It is often used to make smaller rooms look more airy and larger. Blue is the color of Peace in Feng Shui. The fifth state is blue.