Physical appearance of color.

As human beings we perceive colors thanks to the existence or absence of light, the color is born, when the color stimulus motivates the intact organ of sight from one person to produce the sensation of the existence of color, we must also take into account that in the visual system there are different possibilities to see the color, this is because there are diseases such as blindness, color blindness (eye disease that prevents distinguish colors) and color blindness (has the same characteristics as color blindness ), each of which the vision system, see colors differently.


The human eye is most sensitive to wavelengths of light green and yellow, and this may be due to the survival instinct that compels the human body to find fresh food. Green and yellow waves are captured by the eye as the brightest and the blue waves and red as darker.