User:Mehdi2000

Dye is a substance that produces color. Matters reflects light of specific length as they are stimulated by a light energy. The method in which this energy is passed to that substance determines the kind of dye and the reflected energy from the substance produces the color of the dye. Also see color, Light, color

Light is what we see and the range of different lights that human eyes can experience is the visible light spectrum. A healthy human should see a light wavelength of 390 nanometers to 720 nanometers.It is called the visible light spectrum'.

Color is an important factor of human ingenuity; a well-chosen environment with a vivacious harmony of colors can create that spark which brings vibrant and beauty for a lifetime.

Five important factors of color:

 Contrast

Brightness

Hue

Saturation

Color-impression

by,mehdi101