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During the Zhou Dynasty, Chang Hong, a Grand Master under Duke Wen of Liu, was fiercely loyal to the imperial court throughout his life, neither servile nor overbearing, possessing a noble spirit.
Because of his integrity, he offended influential figures in the court and was unjustly killed by the Zhou people.
Legend has it that at the time of his execution, some admirers collected his blood and hid it in their homes. Three years later, all these dried blood clots transformed into precious jade.

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Open the tool →苌弘化碧 (cháng hóng huà bì) is a Chinese idiom (chengyu) meaning “refers to the legend that Chang Hong's blood transformed into jade after his unjust execution, symbolizing profound loyalty, unyielding integrity in the face of injustice, or the enduring legacy of sacrifice”.
苌弘化碧 is pronounced cháng hóng huà bì in Mandarin Chinese.
Literally, 苌弘化碧 means “Chang Hong's blood turned into jade”. It is used to mean “refers to the legend that Chang Hong's blood transformed into jade after his unjust execution, symbolizing profound loyalty, unyielding integrity in the face of injustice, or the enduring legacy of sacrifice”.
苌弘化碧 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
苌弘:周敬王的夫人,后蒙冤为人所杀,传说血化为碧玉。