First off I hope I'm putting this in the correct forum. My question is more than just the minimum amount of photons to make a single blip of white light, but more so the base photons in the visible spectrum of light. We have all seen a prism split light into violet, blue, cyan, green, yellow, orange, and red waves of light, but what are the colors possible from a single photon of light. Example cyan is really a mixture of blue and green light, so I'm guessing a single photon could be blue or green but not cyan? I feel like I'm starting to ramble on with all of my thoughts about this, but my real question is what are the colors a single photon of light can be?