What are red and blue in Tae Kwon Do?

Answer 1

In Taekwondo, the Korean term used for red is "Hong" 홍, and blue is "Chung" 청.

These terms are most commonly used in Taekwondo by a tournament referee to designate the two fighters wearing red and blue hogu (chest protectors).

The color red in Korean is "Ppalgan" 빨간 as in the red belt rank Ppalgan ddi 빨간띠.

The color blue is "Paran" 파란, as in the blue belt rank Paran ddi 파란띠.