紺色[koniro] deep blue
紺青[konjou] navy blue
紺地[konji] dark blue ground
紺碧[konpeki] deep blue
紫紺[shikon] bluish purple

濃紺[noukon] dark blue
紺屋[kouya] dyer
紺の背広[konnosebiro] blue business suit
紺飛白[kongasuri] dark blue cloth with white splash patterns

隣の芝生は青い[tonarinoshibafuhaaoi] the grass is always greener on the other side
燕青拳[enseiken] Yangqingquan
青竜蝦[shako] mantis shrimp (any marine crustacean of order Stomatopoda, esp. the species Oratosquilla oratoria)
灰青色[haiseishoku] grayish blue
紺青[konjou] navy blue

青眼[seigan] aiming at the eye (with a sword)
青い[aoi] blue
青い鳥[aoitori] bluebird (Sialia spp.)
青褪める[aozameru] to become pale