Blue is a magnificent feng shui color. It ranges from gentle sky blue and serene blue-green color of the ocean to the deep indigo blue of the crown chakra.
In feng shui, blue color is considered to bring the energy of calm and peace, as well as an overall sense of relaxation and healing.
According to the feng shui theory of 5 elements, blue color is an expression of the Water feng shui element. This means there are certain areas in your home that will much benefit from this feng shui element - so you can use blue color freely in your home decor in that area.
This also means that there are some areas in your home where it is best to limit a strong blue color decor scheme.
Without making it too complicated, know that feng shui-wise, blue is an excellent choice in two bagua areas of your home or office. This is the East (Health & Family) bagua and the Southeast (Wealth & Abundance) bagua, because the Water energy of the blue color nourishes the Wood element of these two feng shui areas.
You can bring the needed blue color energy as wall color, art depicting blue, or various decor items.