Sea-green and Sea green

Sea-green adjective - Of the color of the sea; bluish green.

Sea green and sea-green are semantically related In some cases you can replace phrase "Sea green" with "Sea-green", this phrases are similar.

Sea green noun - The property of a moderate green color resembling the waters of the sea.

Sea-green and sea green are semantically related in aqua topic. You can use "Sea-green" instead the phrase "Sea green" as a noun or an adjective.