"Ocean-gray" is a descriptive term typically used to describe the color of water in the sea. However, there are several other synonyms that can be used to describe this unique color. Some examples include "steel-blue," "slate-gray," "stormy-gray," and "ashen-blue." These terms evoke a sense of depth and mystery, which are often associated with the color of the ocean. Other synonyms include "gunmetal," "smoky-blue," and "charcoal-gray," which all convey a sense of darkness and thickness. No matter which synonym is used, each one captures the essence of the ocean and its vastness, making it a beautiful and powerful force of nature.