Human hair color account for all possible shades of brown, blond, or red (for example, platinum blond versus dark blond/light brown), nor does it explain why hair color sometimes darkens as a person ages. Several gene pairs control the light versus dark hair color in a cumulative effect. A person's genotype for a multifactorial trait can interact with the environment to produce varying phenotypes (see quantitative trait locus). Natural hair color can be brown, blond, black, red, or white; all natural hair colors including grey, white and lightest blond, are shades of brown. The Fischer–Saller scale, named after Eugen Fischer and , is
Burgundy (color) Burgundy (color) Burgundy is a dark red or purple or a dark red-ish purple tending towards brown. It takes its name from colour of Burgundy wine (from the Burgundy region of France, named after the ancient Germanic Burgundians). The French call this shade of red after a different wine region, "Bordeaux"; though in Quebec French, it is "Bourgogne" (). When referring to the color, "burgundy" is usually not capitalized. The color burgundy is similar to other shades of dark red such as maroon, cordovan, and oxblood, but differs from each of these in subtle ways. For example, cordovan, with its