红颜知己蓝颜知己
[hóng yán zhī jĭ lán yán zhī jĭ]
'红颜知己蓝颜知己' refers to a special friend: a close opposite-sex companion or soulmate (a Red-Yuan intimate or Blue-Yuan intimate). Traditionally, 'Red-Yuan' refers to a female acquaintance, and 'Blue-Yuan' for male acquaintances. These are individuals with deep, platonic relationships. They're cherished and have a significant place of understanding and trust within your life.