These Web pages provide library of easily-downloadable standard data sets relevant to color and vision research. The focus of this site is primarily scientific and technical, but some introductory background information is also provided.
Levels: High School
This site explains what color is and its expression in light, etc...\r\nColor is a function of the human visual system, and is not an intrinsic property. Objects don't "have" color, they give off light that "appears" to be a color. Spectral power distributions exist in the physical world, but color exists only in the mind of the beholder.
Levels: Middle School