Blue as Blue Screen (of Death)
Digitally, the usage of blue is well known for the notorious sign on computers and laptops called 'Blue Screen of Death.' Microsofts, who invented the blue screen, didn't intentionally put blue as a reminder of danger, but was chosen through random drawing lots. However, this silly intention has changed the perspectives of people recognizing the color of blue digitally. It signifies the problem that needs to be solved and the warning that this machine needs to be treated cautiously.