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 ...

There’s just something about red. Bold, fiery, commanding — red knows how to catch your attention. Accordingly, you might not be surprised to learn all the powerful concepts the color can represent.

Color blindness, or color deficiency, causes difficulty telling different colors apart and may affect the shades and brightness of colors. Color deficiency can occur in females but is much less common ...