The world was fading around me, becoming gray and fuzzy.

Another flash of light seared across a sky that had become dark gray.

The sea had become gray, and the wind was rising.

"If your hair had become gray, that had to be a long time from now."

True, his hair had become mostly gray and he did tint it.

Your hair has become more gray since we first met you.

For men, becoming gray and losing hair have always been the prime indicators of aging.

She followed his gaze, noting that the darkness had become more gray than black.

At length as the sky was becoming gray in the east, they passed into the shadow of what was called the Standing Stone.

By H+1 the green had become dull gray, but the feature persisted for 3 hours.