Promise. The easiest way to take your look from day to night? A bold lip color. And since purple reigns this season, why not switch up your signature red lip with a deep plum hue? It's not only ...

The stars traded in their nude lips for strikingly dark pouts on the red carpet ... edgier touch to traditional red-carpet fare. Also, purple-toned lip color provides the perfect juxtaposition ...

While metallic purple on your lips is definitely not subtle, this liquid lipstick's matte finish tones down the intensity (but just slightly). Because only a precious few can pull off black ...

Fashion historian Einav Rabinovitch-Fox points to the unconventional lips’ origins: “The invention of black and blue lipstick has its origins in early Hollywood and black-and-white movies ...

Blood rich in oxygen is bright red, while blood with low levels of oxygen is dark red or purple, which shows through your skin and mucus membranes. Blue lips can be an indicator of decreased ...

or dark gums. Other symptoms include a lack of energy, weakness, and a low mood. If a person’s lips appear darker and take on a blue or purple tone, or they experience difficulty breathing ...