Blue color of ocean - Scattering

Why does oceans appear blue in color?

The emergent rays from the sun consists of VIBGYOR (violet,indigo,blue,green,yellow,orange,red). These may fall on the ocean containing water molecules. The ocean water readily absorbs red,green,yellow and orange. Violet, Indigo, Blue which are not easily absorbed by the water molecules. Hence, they remain scattered in the ocean and looks blue to our eyes. But as it comes down it becomes lighter and the water molecules absorbs these color and therefore the deep in the ocean looks darker in color.