Bad news for Peppa Pig, Miss Piggy and Porky the Pig or any other animated characters of a porcine disposition, there is no pink light. The rainbow runs from red to violet and pink, or strictly speaking magenta (fuchsia). Magenta is a blend of red and blue, but if you roll up the rainbow we need to keep a gap between the red and the violet ends of the spectrum to squeeze in all the radio waves, micro waves, gamma and X-rays, ultraviolet and infrared, there is simply no place for pink light. Sorry piggies.