Code blue signifies a critical medical emergency. Find out what other hospital codes mean and why some hospital associations want to standardize them.

Following is a sampling of HTML color codes used in HTML tags for setting background and font color. Colors are coded as red, green and blue intensities in hexadecimal notation (see hex chart ...

Relying on mobile technology and big data, the Chinese government has used a color-based “health code” system to control people’s movements and curb the spread of the coronavirus.

Relying on mobile technology and big data, the Chinese government has used a color-based “health code” system to control people’s movements and curb the spread of the coronavirus.