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
Magnolia (color) in pale "stone colours" since the 18th century, the use of the name "magnolia" only dates from the 1950s. The Australian Standard AS 2700 definition of magnolia is noticeably more saturated than the British Standard one although its hue and luminosity are nearly the same: sRGB(240,223,196), HSV(79,16,90) An alternative definition of the colour was published in America in 1925. Maerz and Paul's "A Dictionary of Color" depicts three shades which are described as magnolia: However "magnolia" does not appear to be in common use as a colour name in the USA: the UK English Cambridge Dictionary entry for magnolia defines