1.   The chemicals imparted a bluish color to the paper.

2.   Blue jets typically occur just above thunderstorms and, as their name implies, have a bluish color.

3.   On rare occasions, the appropriate distribution of particle sizes in the smoke from fires can cause moonlight to take on a bluish color.

4.   On rare occasions, the appropriate distribution of particle sizes can cause the moonlight to take on a bluish color.

5.   Rarely, the appropriate distribution of particle sizes can cause the moonlight to take on a bluish color.

6.   Patients reported visual disturbances described as a bluish color tinge and light sensitivity.