Investopedia / Zoe Hansen A traditional and perhaps outdated term, "blue collar" is a type of job that is done outside the office, often with manual labor or trade skills. The term blue collar is ...

The light-to-dark-blue gradient of the Messenger logo when it launched matched the gradient of Facebook’s logo at the time. In 2020, Messenger rebranded to the multicolor gradient that it used ...

Why Trust Us? Blue light has been blamed for a slew of health issues, including headaches and trouble sleeping. But new research suggests that harnessing its power and using it in a certain way ...

The background color is inspired by International Klein Blue, a hue that the artist Yves Klein first mixed in the 1950s, using it to make an array of monochromatic paintings until his death in 1962.