The group 'T1419' Cyan poses at the ceremony for the appointment of the Seoul 'Youth Red Cross' public relations ambassador at the Seoul Special Branch of the Korean Red Cross in Majang-dong, Seongdong-gu, Seoul on the afternoon of the 11th.
About Cyan
Cyan is the color between green and blue on the visible spectrum of light. It is evoked by light with a predominant wavelength between 490 and 520 nm, between the wavelengths of green and blue.
 Wikipedia