Adobe PHOTOSHOP 5.0 User Manual page 227

As you adjust the color using the color field and
color slider, the numerical values change to reflect
the new color. The color rectangle to the right of
the color slider displays the new color in the top
section of the rectangle. The original color appears
at the bottom of the rectangle.
Specifying a color using numeric values
In the Adobe Photoshop Color Picker, you can
select a color in any of the four color models by
specifying numeric values for each color
component.
To specify colors using numeric values:
Do one of the following:
In CMYK color mode (this is the mode
•
PostScript printers use), specify each component
value as a percentage of cyan, magenta, yellow, and
black.
In RGB color mode (this is the mode your
•
monitor uses), specify component values from
0 to 255 (0 is black, and 255 is the pure color).
In HSB color mode, specify saturation and
•
brightness as percentages; specify hue as an angle,
from 0 to 360 , that corresponds to a location on
° °
the color wheel. (See "Color modes and models"
on page 63 for information on the color wheel.)
In Lab mode, enter a lightness value (L) from
•
0 to 100, and a axis (green to magenta) and b axis
(blue to yellow) values from –128 to +127.
Recognizing nonprintable colors
Some colors in the RGB, HSB, and Lab color
models, such as neon colors, cannot be printed,
because they have no equivalents in the CMYK
model. When you select a nonprintable color, an
alert triangle with an exclamation point appears in
the Color Picker dialog box and in the Color
palette. The closest CMYK equivalent is displayed
below the triangle. (See "Identifying out-of-gamut
colors" on page 110.)
Color Picker out-of-gamut display
Printable colors are determined by the printing
values you enter for the selected ink set in the
CMYK Setup dialog box.
To select the closest CMYK equivalent for a
nonprintable color:
Click the alert triangle that appears in the
Color Picker dialog box or the Color palette.
Choosing custom colors
The Adobe Photoshop Color Picker lets you
choose custom colors from the PANTONE
MATCHING SYSTEM , the TRUMATCH
®
SWATCHING SYSTEM , the FOCOLTONE
™
COLOUR SYSTEM, the TOYO Color Finder
1050 system, the ANPA-COLOR
DIC Color Guide.
ADOBE PHOTOSHOP 5.0 219
User Guide
®
®
®
™
system, and the
™