Hexadecimal Color Codes
Explore how digital colors are stored in computer memory by understanding RGB channel intensities and their binary to hexadecimal conversion. Learn to identify the hex codes representing black, white, grayscale, and pure colors like red, green, and blue, and see their practical use in software design.
Color representation in memory
The different colors are represented by different intensities of red, green, and blue channels, as shown in the figure. For an eight-bit pixel, each of these three intensities ranges from 0 to 255. Therefore, each channel requires 8 bits from memory. The following figure shows how black and white pixels are stored in memory. The top, middle, and bottom rows represent the intensity of the red, green, and blue channels, respectively.
Different intensities of red, green, and blue channels
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