Thursday 20 November 2008

Color system

Every time a designer or painter uses a color, the colors are achieved with the additive color method

Subtractive Color. When we mix colors using paint, or through the printing process, we are using the subtractive color method. Subtractive color mixing means that one begins with white and ends with black; as one adds color, the result gets darker and tends to black. The CMYK color system is the color system used for printing. Those colors used in painting—an example of the subtractive color method.

CMYK is a subtractive color systemcolors used in printing

Painter color wheelcolors used in painting


Additive Color. If we are working on a computer, the colors we see on the screen are created with light using the additive color method. Additive color mixing begins with black and ends with white as more color is added. The result is lighter and ends up being white. The RGB colors are light primaries and colors are created with light. Percentages of red, green, & blue light are used to generate color on a computer screen.

RGB is an additive color systemThe RGB colors (light primaries)

RGB color wheelcolors generate on a computer screen.


Working With Systems

visible-spectrumThe Visible spectrum consists of billions of colors, a monitor can display millions, a high quality printer is only capable of producing thousands, and older computer systems may be limited to 216 cross-platform colors.

Reproducing color can be problematic with regard to printed, digital media, because what we see is not what is possible to get. Although a monitor may be able to display 'true color' (16,000,000 colors), millions of these colors are outside of the spectrum available to printers. Since digital designs are generated using the RGB color system, colors used in those designs must be part of the CMYK spectrum or they will not be reproduced with proper color rendering. Working within the CMYK color system, or choosing colors from Pantone palettes insures proper color rendering.

No comments: