This is the regional flag of Hong Kong, the special administrative region of China, also known as the Bauhinia Flag. The flag has a red background and a white bauhinia pattern with a five-star stamen in the center.It is displayed as HK on some platforms. Generally, it means Hong Kong or Hong Kong of China or within Hong Kong of China.
ππ° is the Emoji of a country/regionβs flag, and its meaning is flag: Hong Kong SAR China. The Emoji ππ° is composed of two regional indicator letters, namely π and π°. The country/region's 2-letter code for Hong Kong SAR China is HK, so the letters corresponding to the two region indicator letters are H and K. ππ° is displayed as a whole flag on most platforms and as a two-letter symbol on a few platforms.