Number Systems: Decimal, Binary, Hexadecimal, RGB Colors

Red Green Blue Colors

Colors on a computer screen are represented by combining three colors Red, Green, and Blue.

Each dot on a screen is called a pixel (picture element).

Each pixel is a combiation of 3 lights: red, green and blue.

The combination of these three colors is called the RGB color.

The value of each of the three colors can run from 0 (off) to 255 (full blast).
When all of the colors are off (0), there is no light: you see black.
When all 3 lights are on full blast (255), you see white.
The decimal values of the colors are usually shown in hexadecimal.
In hexadecimal 255 is FF. Experiment with the colors below.

Make each of these colors: red, blue, green, white, magenta, cyan, yellow, gray, and pink.



red     0
green 0
blue   0
000000

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