She listened without a word, though her lips turned pale.

She pressed her lips so tight together they almost turned white.

When he spoke, his lips turned blue with the effort, and a sentence came out one or two words at a time.

His lips turned into what she supposed was to be a charming smile.

The arms melted away, the lips turned cold, the hands withdrew.

The old man's lips turned upward in the hint of a smile.

As she looked down at the three of them the smile that curved her lips turned into something quite different.

Her face came clear of the water again, but her lips were already turning blue.

It is also one of the colors your lips can turn if you are chilly.

His lips turned blue, and his heart rate increased quickly.