Physics
Chromophore
A chromophore is the part of a molecule responsible for its color. The color that is seen by our eyes…
Visible spectrum
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in…
Rainbow
A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting…
Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which…
Electromagnetic spectrum
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.…
Shades of purple
There are numerous variations of the color purple, a sampling of which are shown below. In common English usage, purple…
Shades of blue
Varieties of the color blue may differ in hue, chroma (also called saturation, intensity, or colorfulness), or lightness (or value,…
Shades of cyan
Cyan is a greenish-blue color. In the subtractive color system, or CMYK (subtractive), which can be overlaid to produce all…
Shades of green
Varieties of the color green may differ in hue, chroma (also called saturation or intensity) or lightness (or value, tone,…