Converting RGB to Hexįor conversion of a triple RGB value to a single hex value, all the base-10 numbers must be converted into base-16 numbers and the derived values joined together to produce a hex value.Īn example would be the RGB color yellow green, for which the CSS code is color:rgb(154, 205, 50). This gives the same number of potential shades for each of the base colors as with the RGB system, again offering 16,777,216 colors. With hexadecimal codes, the lowest possible to digit number is 00 with the highest being FF/ff, equal to 255 in base 10. The first two numbers in the array tell you how much red there is, the middle two how much green, and the last two how much blue. Base-16 number systems employ digits 0 – 9 and letters A – F (in either upper or lowercase). When colors are represented by hexadecimal numbers, every color is assigned a six digit base 16 number.
To avoid confusion, the primary colors of light are different to the primary colors of pigments that you may be more familiar with, these are red, yellow and blue. Red, green and blue are light's three primary colors, and by adjusting the amount of each you can create 256 3 colors, that's 16,777,216 colors in all. All the numbers can have a value from 0 (lowest amount) to 255 (highest amount).
HSL values are in range of Hue:0-359°, Saturation:0-100%, Lightness:0-100%.With CSS and HTML, color codes are either the trio of RGB values or hexadecimal numbers, e.g., if you wanted to turn your text green, you can either use the CSS command color:rgb(0, 128, 0) or the command color:#008000.įor the RGB code, the numbers in brackets are the quantities of red, green, and blue, in that order. The HSL model attempts to resemble more perceptual color models such as NCS or Munsell, placing fully saturated colors around a circle at a lightness value of 1⁄2, where a lightness value of 0 or 1 is fully black or white, respectively. The HSV representation models the way paints of different colors mix together, with the saturation dimension resembling various shades of brightly colored paint, and the value dimension resembling the mixture of those paints with varying amounts of black or white paint. In these models, colors of each hue are arranged in a radial slice, around a central axis of neutral colors which ranges from black at the bottom to white at the top. HSL (hue, saturation, lightness) and HSV (hue, saturation, value) are two alternative representations of the RGB color model, designed in the 1970s by computer graphics researchers to more closely align with the way human vision perceives color-making attributes. Before the electronic age, the RGB color model already had a solid theory behind it, based in human perception of colors. The main purpose of the RGB color model is for the sensing, representation and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography. The name of the model comes from the initials of the three additive primary colors, red, green, and blue. The RGB color model is an additive color model in which red, green and blue light are added together in various ways to reproduce a broad array of colors.
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