If you were looking at the Earth from a lunar vantage right now, you would see a thin crescent Earth.
The albedo of the earth is quite high compared with the moon so this is a bright curved streak with a lot of blue and white swirl .
As the Crescent Earth approached the Sun a few hours from now you might see a thin line start to encircle the dark Earth, mostly red with a very thin blue outer band.
At the time of the total eclipse when the Sun is centered behind the apparently much larger Earth the red band of the Earths illuminated atmosphere will form a full circle and will be the brightest thing in the sky, a thin red circle surrounded by an even thinner blue circle. You would be looking at all of the sunrises and all of the sunsets going on at the time all round the Earth.
This is about as dark as it ever gets on the Lunar Surface that faces the Earth, most of the time there is either harsh unfiltered sunlight during the day, or bright Earthlight at night.
Of course if you were on the Dark side of the Moon there would hardly ever be any indication that the Earth existed.
