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Additive Color

Additive Color

Description:

In this lesson, you will learn how to recognize and explain additive color and its uses in visual communications.

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Tutorial

What's Covered

Welcome to today's lesson on additive color. In today's lesson you'll learn how to recognize and explain additive color and its uses in visual communication. Specifically, this lesson will cover:

  1. Additive Color
  2. Additive Color Process
  3. Additive Color Application

1. Additive Color

The additive color process is the mixing of color with light. Additive colors are seen when light is projected.

Term to Know

    • Additive Color Process
    • The mixing of color with light; additive color is seen when light is projected.

The idea is that color is created by mixing light together and many devices depend on additive color models such as computer monitors, television screens, and smartphones.

Hint

It's worth noting that because it's light that's being combined, you're going to get different color combinations. It's not like paint where you mix red and blue and you get straight purple or you mix yellow and red and get orange. The primaries are different in light and they are red, green, and blue.

As I mentioned, the primaries of red, green, and blue are used in many devices. They were even used in older televisions or computer monitors, called CRTs which is short for Cathode Ray Tube.

Term to Know

    • CRT
    • Cathode ray tube, name for the display found on older traditional computer monitors and television sets; CRTs use the additive primaries, RGB, to produce color.

2. Additive Color Process

Next, you will learn about how the process works. Below is a close up of an LCD screen.

Were you looking at the screen at a normal distance, each letter would appear red, green, and blue respectively and the background would be white. If you look at the letter R, only the red pixels are lit, in the letter G only the green pixels are lit, and in the letter B only the blue pixels are lit. You can see in each letter that either completely lowered or just lowered the brightness of the two other pixel colors to achieve the desired results.

A combination of these three colors are going to give you a variety of different colors. If you wanted to create a magenta color, you'd use the red and blue pixels and if you wanted to create yellow then you'd use the green and red pixels.


3. Additive Color Application

As you can imagine, because additive color applies to so many devices and practices, many communications professionals depend on the additive color model, such as photography, television, web design, and more. Depending on the profession, there could be a variety of additive color specification systems being used, such as hex or hexadecimal color. Hexadecimal color is the color system used to describe web pages defined by the base 16 notational system.

Term to Know

    • Hexadecimal Color
    • The color system used to describe web pages, defined by the base 16 notational system; Combinations of the numerals from 0 through 9 and letters from A though F are assigned to each color in this system.

Combinations of the numerals from zero through nine and letters from A through F are assigned to each color in the system. Below is an example chart.


In web, colors described by a six digit alpha A through F and numerical zero through nine combination. So, black is 000000 while white is FFFFFF. If you've ever played around with maybe making your website have pretty colors or spicing up that old MySpace page with pretty text then you might have used this system to get the job done and specified appropriate colors in the web. This system gives you quite a range of colors since there are many combinations possible.


Summary

Additive Colors are seen when light is projected and additive color process is mixing color with light.  Hexadecimal color is an example of additive color application.


Keep up the learning and have a great day!

Source: SOURCE: THIS WORK IS ADAPTED FROM SOPHIA AUTHOR MARIO E. HERNANDEZ

TERMS TO KNOW
  • Hexadecimal Color 

    the color system used to describe web pages, defined by the base 16 notational system; Combinations of the numerals from 0 through 9 and letters from A though F are assigned to each color in this system.

  • CRT

    cathode ray tube, name for the display found on older traditional computer monitors and television sets; CRTs use the additive primaries, RGB, to produce color.

  • Additive Color Process

    the mixing of color with light; additive color is seen when light is projected.