Hospitals often use code names to alert staff to an emergency. Code blue means a medical emergency. Code red means fire or smoke. Code black typically means there is a bomb threat. Hospitals are the ...

Quite often, we need to identify a color on a web page or in an application, so that we can use it on our blogs or apps as well. In such a case, we need to make use of tools to identify the color ...

A new system uses software to dictate quarantines — and appears to send personal data to police, in a troubling precedent for automated social control. The QR code inside the Alipay app. Green is good ...