azul

例句：

1. 1. The sky was a deep shade of blue.
   天空是深蓝色的。
2. 2. She wore a blue dress to the wedding.
   她穿着一件蓝色连衣裙去参加婚礼。
3. 3. The ocean is a beautiful shade of azure blue.
   海洋是美丽的天蓝色。