![]() Some have argued that he was influenced by his religious background in which six was an inauspicious number while seven was considered a "complete" and holy number. Sir Isaac Newton gave the rainbow seven colors. An equiangular six-color rainbow could be, among other rotations, the primary and secondary colors: red hsl(0,100%,50%) ![]() This rainbow would appear as follows: red hsl(0,100%,50%)Īn "equiangular" four color rainbow would be: red hsl(0,100%,50%)Ī drawing of a rainbow by a child rainbow often has six colors, and this is arguably the most easily identified colors for English speakers in the rainbow: red hsl(0,100%,50%)Īlthough the above is visually a rainbow, the angular distribution is not equiangular. In Micronesia many of the local languages have only four color words applicable to the rainbow, typically red, yellow, green, and blue. Yellow is at 60°, cyan at 180°, and magenta is at 270°. The secondary colors of light are located at half the primary angles. In the HSL model red is at 0°, green is at 120°, and blue is at 240°. The primary colors of light are red, green, and blue. In the HSL model, hues are specified by an angular measure. The support for the Hue-Saturation-Luminosity module (HSL) in Cascading Style Sheets (CSS) allows the exploration of the colors of the rainbow from a mathematical perspective. As of 2005, FireFox supports this module, Microsoft Internet Explorer does not. Browsers that fully support this module are necessary to display this page. This page displays colors using the hue, saturation, and luminosity module of CSS. The mathematical colors of the rainbow using HSL The mathematical colors of the rainbow using HSL
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