2011

Table Of Contents
objects on the same layer. Color is also used as a way to indicate lineweight
for color-dependent plotting.
You can use a variety of color palettes when assigning color to objects,
including
AutoCAD LT Color Index (ACI)
True Color
®
, PANTONE
®
RAL
Classic and RAL Design color books
DIC
®
Color Guide
Colors from imported color books.
ACI Colors
ACI colors are the standard colors used in AutoCAD LT. Each color is identified
by an ACI number, an integer from 1 through 255. Standard color names are
available only for colors 1 through 7. The colors are assigned as follows: 1 Red,
2 Yellow, 3 Green, 4 Cyan, 5 Blue, 6 Magenta, 7 White/Black.
True Colors
True colors use 24-bit color definitions to display over 16 million colors. When
specifying true colors, you can use either an RGB or HSL color model. With
the RGB color model, you can specify the red, green, and blue components
of the color; with the HSL color model, you can specify the hue, saturation,
and luminance aspects of the color.
Color Books
This program includes several standard Pantone color books. You can also
import other color books such as the DIC color guide or RAL color sets.
Importing user-defined color books can further expand your available color
selections.
NOTE Pantone has provided new color definitions for Architectural & Interiors
Cotton and Architectural & Interiors Paper color books. If you used these color
books in releases prior to AutoCAD 2006, you may notice subtle changes in the
colors.
You install color books on your system by using the Files tab in the Options
dialog box. Once a color book is loaded, you can select colors from the color
book and apply them to objects in your drawings.
352 | Chapter 14 Control the Properties of Objects