Color

What the eye sees

The human eye only sees three colors: red (R), green(G), and blue (B), however, these three colors constitute he entire spectrum of color.

Scientific experiments have shown that humans can discriminate between very subtle differences in color, and estimates of the number of colors we can see range as high as 10 million.

Is black a color?

In physics terms, there is no wavelength that corresponds to the color "black". So in physics, black is not typically considered a color, but rather the absence of color. In human perception, certainly black is a color. We've defined it as such. It's as much a color as white, mauve, or burnt umber.

Black is the absence of all color.

Not! Black is the absorption of all colors

For a look at readers' opinions go to:

http://sg.answers.yahoo.com/question/index?qid=20080210000409AA7PzO4 or just Google "Is black a color?"

Is white a color?

When an object emits all spectrum of light it received, it becomes white. When absorbs all it becomes black. An object is red in colour when it absorbs all the spectrum of light except red.

For a look at readers' opinions go to:

http://answers.yahoo.com/question/index?qid=20070613051356AAaMg4F or just Google "Is white a color?"

Color (Subtractive)

In the art world, color is created by putting pigments together. 100% of all three will produce black.

Color (Additive)

The digital world utiizes red, green, and blue in various quantities and as the quantity of color is added, the brighter the image appears. 100% of all three will produce white.

The Colour Wheel

The color wheel is divided into three categories: primary, secondary, and tertiary. The three primary colors are red, yellow and blue. These colors are considered to be foundation colors because they are used to create all other colors. By combining two of the primary colors, three secondary colors are formed. They are orange, green and violet. The six tertiary colors are made by combining a primary and an adjacent secondary color. These colors are red-orange, red-violet, yellow-green, yellow-orange, blue-green and blue-violet.

Complementary

If two hues are opposite each other on the color wheel they are considered to be complementary colors. When used together in a design they make each other seem brighter and more intense. (example: red and green)

Color Temperature

Colors are also divided into cool and warm categories.

The cool colors are green, blue and violet.

Warm colors are red, orange and yellow.

The advantage of digital cameras is that the camera automatically adjusts the color temperature i.e. white balance

Filters

Filters are colored glass that is placed in front of the lens to change the subject. For example polarizing filters are used mainly to make blue skies richer and remove reflections from glass, water, and metal. However, because all objects reflect back light the subject can seem dull or muted.

Filters can change good scenes into great scenes.