海蓝的英文：
ultramarine

参考例句：

beads made of aquamarine can bring luck in love
海蓝宝石制成的珠子能带来爱情的好运。

ultramarine是什么意思：
adj. 深蓝色的；海外的
n. 深蓝色；佛青色

The horizon beyond was of the deepest ultramarine.
远处的天边，则是一片最深的群青。

We call it artificial ultramarine.
我们称之为人工群青。

You should learn more knowledge about ultramarine trade.
你应该多学点关于海外贸易的知识。

Maggie's head was spinning in a daze of ultramarine blue far removed from Catholicism or polynesia.
麦琪的思想远离天主教而沉入了让人眼花缭乱的深蓝色中。

For example, ultramarine, made by the grinding of lapis lazuli, and red pigments made of sulphur and silver, were admired for their cost
如由天青石研磨制成的佛青色、用硫和银制成的红颜料，因其高昂的费用而倍受青睐。