Graphics Programs Reference
In-Depth Information
Images that are created or altered digitally, however, often contain RGB colors that
are outside the CMYK gamut—for example, neon-colored logos and lights.
Before you convert an image from RGB to CMYK, you can preview the CMYK
color values while still in RGB mode.
1.
Choose View > Gamut Warning to see out-of-gamut colors. Photoshop
builds a color-conversion table, and displays a neutral gray in the image
window where the colors are out of gamut.
Because the gray can be hard to spot in the image, you'll convert it to a more vis-
ible color.
2.
Choose Edit > Preferences > Transparency & Gamut (Windows) or Pho-
toshop > Preferences > Transparency & Gamut (Mac OS).
3.
Click the color sample in the Gamut Warning area at the bottom of the
dialog box. Select a vivid color, such as purple or bright green, and click
OK.
4.
Click OK to close the Preferences dialog box.
The bright new color you chose appears instead of the neutral gray as the gamut
warning color.
5.
Choose View > Gamut Warning to turn off the preview of out-of-gamut
colors.
Photoshop will automatically correct these out-of-gamut colors when you save the
file in Photoshop EPS format later in this lesson. Photoshop EPS format changes
the RGB image to CMYK, adjusting the RGB colors as needed to bring them into
the CMYK color gamut.
