Chapter 2
88
About Web-safe colors
In HTML, colors are expressed either as hexadecimal values (for example,
#FF0000
) or as color names (
red
). A Web-safe color is one that appears the same
in Netscape Navigator and Microsoft Internet Explorer on both Windows and
Macintosh systems when running in 256-color mode. The conventional wisdom
is that there are 216 common colors, and that any hexadecimal value that
combines the pairs 00, 33, 66, 99, CC, or FF (RGB values 0, 51, 102, 153, 204,
and 255, respectively) represents a Web-safe color.
Testing, however, reveals that there are only 216 Web-safe colors. Internet
Explorer on Windows does not correctly render the colors #0033FF (0,51,255),
#3300FF (51,0,255), #00FF33 (0,255,51), and #33FF00 (51,255,0).
The Color Cubes (default) and the Continuous Tone palettes in Dreamweaver use
the 216-color Web-safe palette; selecting a color from these palettes displays the
color’s hexadecimal value.
To choose a color outside the Web-safe range, open the system color picker by
clicking the Color Wheel button in the upper right corner of the Dreamweaver
color picker. The system color picker is not limited to Web-safe colors.
UNIX versions of Netscape Navigator use a different color palette than the
Windows and Macintosh versions. If you are developing exclusively for UNIX
browsers (or your target audience is Windows or Macintosh users with 24-bit
monitors and UNIX users with 8-bit monitors), consider using hexadecimal
values that combine the pairs 00, 40, 80, BF, or FF, which produce Web-safe
colors for SunOS.
Setting preferences
Dreamweaver has preference settings that control the general appearance of the
Dreamweaver user interface as well as options related to specific features such as
layers, style sheets, displaying HTML and JavaScript code, external editors, and
previewing in browsers. Information about specific preference options is provided
throughout this guide in conjunction with the associated feature or topic.
This guide describes only the most common of the preference options.
For information on a specific preference option not covered here, see the
corresponding topic in Dreamweaver Help.
Setting General preferences
The General preferences control the general appearance of Dreamweaver. To
change these preferences, choose Edit > Preferences, and then click General. The
General preferences are divided into two subcategories: File options and Editing
options. For detailed information on these preferences, see Dreamweaver Help.
Summary of Contents for 38028779 - Macromedia Dreamweaver - Mac
Page 1: ...macromedia Using Dreamweaver...
Page 148: ...Chapter 4 148...
Page 296: ...Chapter 12 296...
Page 472: ...Chapter 18 472...
Page 512: ...Chapter 21 512...
Page 562: ...Appendix 562...
