Her skin was turning blue now; even he could see the color change.

He bit his lower lip so hard that the skin turned white.

This would make breathing even more difficult, and the skin might turn blue.

The skin near the wound was turning a little black and blue.

When the skin no longer turns red after this much exposure, the time is increased.

Their facial skin turned from a normal dark green to almost black.

She pushed back one sleeve to show him where her white skin turned brown.

My skin had not turned to moss; that hadn't been necessary.

My skin turned cold at the thought of the pain Kate would have suffered.

Her skin turned icy, as if she had fallen into the river again.