In the picture, the yellow egg that Madi is holding appears yellow because the red and green cones in our eyes are stimulated. Since the sunlight is made up of red, blue, and green light, to appear yellow, only the blue light is absorbed while the red and green light is reflected. At Easter, I also remember that my cousin put his egg in every single color of dye, and it turned a really disgusting brown. Thanks to physics, I now know that mixing paint colors and light colors are different. In that lab we did, when we combined all the colors, the paint also turned an equally gross-looking brown. Only if you mix magenta, cyan, and yellow LIGHT together, will it produce black.