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The draft CSS Color 5 [27] specification introduces syntax for mixing and manipulating existing colors, including: A color-mix() function for mixing colors; Relative color syntax for manipulating components of an existing color; Custom color spaces are also supported via ICC profiles. This allows the use of CMYK on web pages. [27]
The 80 hex value, which is 128 in decimal, represents a 50.2% alpha value because 128 is approximately 50.2% of the maximum value of 255 (FF hex); to continue to decipher the 80FFFF00 value, the first FF represents the maximum value red can have; the second FF is like the previous but for green; the final 00 represents the minimum value blue ...
The number in each position ranges from 0 (no color added) to 255 (100% color added). This range was chosen because it is the most commonly used in computer color selection dialogs. (The numbers 0 through 255 fit naturally within one byte and are therefore used to directly drive graphics cards.) Most image editing programs accept this range.
A color in the RGB color model is described by indicating how much of each of the red, green, and blue is included. The color is expressed as an RGB triplet (r,g,b), each component of which can vary from zero to a defined maximum value. If all the components are at zero the result is black; if all are at maximum, the result is the brightest ...
Quantized color coordinates outside the nominal ranges above are allowed, but typically they would be clamped for broadcast or for display (except for Superwhite and xvYCC). However, the 8-bit values 0 and 255 and the 10 bit values 0..3 and 1020..1023 are reserved for timing marks (SAV and EAV) and may not appear in color data.
Yellow = 255 255 0 Green = 0 255 128 Blue = 0 0 255 Black = 0 0 0 White = 255 255 255 Of course, gray is 128 128 128; note that it is a mixture of any 2 colors that are complements, such as black and white , blue and yellow , and red and green .
YCbCr is sometimes abbreviated to YCC.Typically the terms Y′CbCr, YCbCr, YPbPr and YUV are used interchangeably, leading to some confusion. The main difference is that YPbPr is used with analog images and YCbCr with digital images, leading to different scaling values for U max and V max (in YCbCr both are ) when converting to/from YUV.
RGB color spaces is a category of additive colorimetric color spaces [1] specifying part of its absolute color space definition using the RGB color model. [ 2 ] RGB color spaces are commonly found describing the mapping of the RGB color model to human perceivable color, but some RGB color spaces use imaginary (non-real-world) primaries and thus ...