Sky Cyan
"After rain, the sky clears—make this color for me." This legendary quote from Emperor Huizong describes Ru kiln's Sky Cyan. Using agate in the glaze, Ru ware achieves a jade-like blue that shifts subtly with light. Only ~70 pieces survive, each priceless.
Sky Cyan originates from Ru kiln, using agate in the glaze fired in reduction atmosphere to achieve a post-rain sky blue.
Sky Cyan symbolizes transcendence, subtlety, and the philosophical ideal of harmony between heaven and humanity.
Ru kiln Sky Cyan was created in the late Northern Song Dynasty (c. 1086-1106), ranking first among the Five Great Kilns. Production ceased after the Jin invasion, and the technique was lost.
Sky Cyan glaze is one of Chinese ceramics' greatest technical mysteries. Ru kiln artisans added agate powder to the glaze and fired in a reduction atmosphere around 1200°C. Minute changes in temperature and atmosphere created color variations, making each piece unique.
Ru Ware Sky Cyan Washer
北宋British Museum collection, sold for HK$294 million in 2012.
National Palace Museum Ru Ware Narcissus Planter
北宋The only intact Ru ware piece without crackle glaze in the world.
Sky Cyan inspires modern product design—from limited-edition smartphones to tea packaging and porcelain. It is a preferred background color for Chinese weddings and cultural spaces.
Click a swatch to copy HEX
雨过天青云破处,这般颜色做将来。