A hand drawn graph showing the blue light spectrum represented as a plot. The x axis is "energy (color) with red, orange, yellow, green, and blue. The y axis is intensity # of photons of a certain color collection. In the graph, there is no red, a tiny bit of orange, and then yellow, green, and blue bars get bigger in succession.

Blue light spectrum represented as a plot.

Image courtesy of Peter Ashton, Simba Kol, Shakib Ahmed