Not consciously taking control of the element of value to your designs is like using a flashlight at noon. Its full potential is utterly wasted!
What is Value?
Value is the relative lightness or darkness of an object. It is the difference between shadow and highlight, and all the midtones in between. Value is not the same as color, though value can be used to “color” an image. Black and white photography is a perfect example. It’s not any less appealing because there is no color!