Michael Murdoch is a member and former board member of the Inter-Society Color Council, part of the Color Literacy Project. People love the rainbow of ROYGBIV colors: red, orange, yellow ...

You perceive electromagnetic radiation in the form of light in all the colors of the rainbow. MirageC/Movement via Getty Images ...

We’re waking up to the coldest temperatures of the season so far, with the thermometer reading a chilly 9°F here in the city. If you thought it was cold outside, it’s only going to stay that way ...