Typically, our colour vision is trichromatic, meaning we have three types of cone cells in our eyes, blue, green and red, that respond to short, medium and long wavelengths of light. Each cone ...

Each colour within the visible ... all the wavelengths of visible light. For example, an object that appears blue in white light will appear black in red light. This is because the red light ...

Enter red light therapy. I've got a great list of options for you, but if you find yourself in the market for one of the best red light therapy tools, here are a few things to keep in mind.

a red object with little or no white is said to be very saturated. The lightness of a color tells us about its relative ordering on the dark-to-light scale. On a computer, we can tune color ...