Career:
Multimedia Specialist
Table of Contents
 
Math
Going Digital

As a multimedia specialist, you work with digital photographs, videos, animations, and special effects to create websites, DVDs, interactive CDs, and video games. These digital images and sounds are manipulated, stored, displayed, and transmitted through a series of numbers that translate into images and words.

Activity 1: Colorful Numbers on the Web

The RGB hexadecimal color system uses a series of 16 numbers and letters to identify the colors used on the Internet. When you use an RGB hexadecimal color chart to match or set the colors for a web page, you need to remember two things:

  • The system uses six digits to represent the amount of red, green, and blue in a specific color.

The first two digits represent red

The next two digits represent green

The last two digits represent blue

In the number 331100, the first two digits (33) represent red, the next two digits (11) represent green, and the last two digits (00) represent blue.

  • The hexadecimal system is based on the number sixteen. To count in hexadecimal, you use the numbers 0 to 9 and then the letters A to F. The letters pick up where the numbers leave off. The numbers and letters go in the following order.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F

In the example 331100, the color would be more Red because the numbers 33 are the highest numbers. If the series read 3311EE, the color would be more Blue because E is higher than the other digits in the hexadecimal system.

Look at the following hexadecimal numbers and place an “X” by the dominant color: red, green or blue.

112233RedGreenBlue
2200DDRedGreenBlue
110000RedGreenBlue
4444AARedGreenBlue
44FF33RedGreenBlue
225588RedGreenBlue
445522RedGreenBlue

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