blue dot

Say the average red dot has twice as much wealth as the average blue dot.

To the north it touched the horizon, and was only broken by the blue dot of Neuerk Island and its lighthouse.

To his eyes, fresh from complete darkness, the room seemed moderately light; but the gas was little more than a tiny blue dot.

I took a chair and joined the others in the contemplation of the blue dot on the ceiling.

Some of the men are tattooed with a blue dot on the glabella, or vertical mid-frontal line.

Most of the modern work reveals a tiny blue dot at the pull-off of the fine hair brush or pencil.