Online Optical Illusion: Effect of Color
Color has a profound impact in the creation of online optical illusions. Light rays from sources of different colors have different wavelengths. After passing through the lens of the eye, the differences in the wavelengths of these rays results in differences in focal points. Online optical illusions frequently incorporate this property of light to trick the viewer’s eye into seeing what is actually not present. A wide range of online optical illusions are available that make use of color in order to create the deceiving visual optical illusion.
One of the most commonly seen online optical illusions is the fading away of a particular color when placed in or around another prominent color.
To see the trick in this online optical illusion, look at the blue dot without any eye movement or movement of the head. What do you see? Keep looking and you will see the blue dot gradually disappearing. Some people find the blue dot in this online optical illusion disappearing rapidly, while others take a little longer.
Psychological articles attribute this phenomenon to the difference in wavelengths of the rays of light; making some colors appear to advance forward while others appear to retire or retreat into the background. Generally, colors with longer wavelengths, such as red, orange, and yellow, are advancing colors. Alternately, colors with shorter wavelengths, such as violet, blue and green, are retiring colors. When two colors with difference in wavelengths are placed together, the color with the shorter wavelength will be retiring while the other will be advancing.
In the present online optical illusion, the light coming from the blue dot is of shorter wavelength than that of the green circle. Hence, the blue dot appears to fade away in this online optical illusion.
