There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...

Tritanopia is a type of color vision deficiency that may make it hard for someone to distinguish between blue and green, pink and yellow, and red and purple. Color vision deficiency, also called color ...

The color wheel was first developed by English mathematician and physicist Sir Isaac Newton, who discovered that white light (what we perceive as colorless daylight) is composed of a spectrum of ...

Every other Friday on Morning Edition, the Outside/In team answers a question from a listener about the natural world. For the past few weeks, we’ve been tackling queries on the theme of “blue.” What ...

This article may contain affiliate links that Yahoo and/or the publisher may receive a commission from if you buy a product or service through those links. Because of its popularity, it’s no surprise ...

Like many people, Amy Morin, a psychotherapist and author of “13 Things Mentally Strong People Don’t Do,” loves to be surrounded by the color blue. So much so, in fact, that she lives on a sailboat in ...

What do Coretta Scott King's wedding dress, jazz and the middle passage all have in common? Scholar and author Imani Perry explains — it's the color blue. In her new book, Black in Blues: How a Color ...

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 ...

Color blindness, or color vision deficiency, causes a person to see colors differently from most other people. There are several types of color blindness. Color vision deficiency or loss has multiple ...