What is name of marine colour in hindi?

There isn't a single, perfect Hindi word for "marine color." However, depending on the specific shade of blue you're referring to, you can use these options:

* समुद्री नीला (samudri nila): This is the most common and direct translation, meaning "sea blue."

* गहरा नीला (gahra nila): This means "dark blue," and can be used for deeper marine tones.

* आसमानी (aasaani): This means "sky blue," and can be used for lighter shades of marine blue.

* नीला हरा (nila hara): This literally means "blue green," and can be used for shades that lean towards teal or turquoise.

Ultimately, the best word depends on the specific shade of blue you are trying to describe.