Why Is the throat chakra (Vishuddha) blue?

The throat chakra, which is associated with light blue or turquoise, is all about expression and truth. When it's open, we can communicate our truth clearly and effectively. When it's blocked, we struggle to share authentically. ~ world wide web.

 Ether is described as “the clear sky; the upper regions of air beyond the clouds”. And this makes beautiful sense as the heart chakra (the fourth) is represented by air and ether is the next element beyond the heart chakra…”the upper regions of air beyond the clouds”. As we begin to explore the higher chakras, we start to see that they are a bit more difficult to sense, more ethereal in nature with less concrete examples of their essence. The first three chakras and elements, earth, water and fire are familiar to us in that we know what each of these are, how they look and how we interact with them. This more vague concept begins as we rise from the lower three chakras to merge into the heart/air chakra. We all know what air is but it becomes more difficult to actually see. And so it goes as we rise into the upper three energy centers and into the realms of expanding consciousness, intuition and our connection to something that is often difficult to comprehend.~ Desert Yoga Therapy.Com

Soundbites via YouTube:

Documentary: Tarot Cards Used and History ~ ISync Post

Mentors:
~ Socrates and Confucius had much in common in their understanding of and their approach to the education of their students, most of whom aspired to become leaders in their communities. Both of them sought to foster in their students the desire for the life of virtue.

Confucius and Socrates are twins in the history of philosophy. They lived in similar times and had comparable views; each was the founder of a great philosophic tradition. Great minds, remind us all  to "think for yourself".  ~ duckduckgo for reference.