“My aim is raise the signal to noise ratio on the web and to educate human factors and other visual design professionals on how, when and why to use color. This is impossible, however, without also providing a good account of basic color psychophysics. Many human factors and other designers apparently have little background in basic color vision. It is also clear that there are many people who work in color technology who don’t know basic psychophysics and perception very well. Clearly, there is need of an FAQ on basic color and design.”