Online color blindness tests may give people an idea of whether they may be color blind and if so, which type of color blindness they might have. This information comes from the National Eye Institute ...

First there was “the dress,” then there was the sneakers, now there’s a debate over the color blue. If you’ve ever argued with a friend over whether something is blue or green, you’re not alone. A new ...

It is one of the first things that we learn about and how we are able to identify our everyday surroundings. The sky is blue, the grass is green, the sunflowers in the field are yellow, and so on.