About colour & visual perception
- Colour is not a property of electromagnetic radiation, but rather a characteristic of visual perception.
- The human eye, and therefore human perception, is sensitive to the range of light wavelengths that constitute the visible spectrum, including the corresponding spectral colours from red to violet.
- Light, however, is rarely of a single wavelength, so when an observer notices a red ball they are probably seeing a range of similar wavelengths of light within the visual spectrum.
- Perception of colour is a subjective process as our eyes respond to stimuli produced by incoming light but each of us responds differently.