The answer is in the question. Blue is the dominant colour in nature. But there is also one more reason: everyone, even non-sighted among us, possesses the receptors to perceive blue.
At the same time, for centuries, reproducing blue by human hand required hard labour and significant expense. This is why William Gass called it a “mirage”…
Five Essential Tips for Cloakroom Design
Cloakrooms are by far the most fun place in many homes. They are often small and relatively inexpensive to decorate. Since we don’t spend much time in them, we’re not concerned about getting bored with the style. This area offers an opportunity for many to express themselves and have fun with the decor.