Blue is a hue that is frequently used to symbolise unity. Other hues, such as green and brown, as well as other sorts of traditions are also used to symbolise oneness in many spiritual practises. The usage of green and brown is justified by the colours’ connection to the earth.
The colour blue is often associated with unity because it is thought to reflect serenity and tranquilly, two essential components of unity. In addition, the hue is considered to stand for friendship, loyalty, and hope—all of which are fundamental components of togetherness. Some countries’ flags, like those of Malaysia and the European Union, use blue to symbolise the togetherness of its citizens.