You can define the L*a*b* values or the CMYK values of a spot color by typing
the numerical values, by selecting a visual match from a pattern of color swatches, or by
measuring the color of a physical object using a measurement device.
The Spot color
matching print option automatically matches spot colors with their
best CMYK equivalents or L*a*b* values, so spot colors can be simulated using the
CMYK colorants. However, you may want to adjust the default CMYK equivalents or
L*a*b* values to achieve a better match for your specific printing conditions. You
can modify spot color definitions using Spot Pro.
Both system and custom
spot colors may be edited. You cannot rename or delete system spot colors.
-
In Spot
Pro, select the spot color you wish to edit and click the Edit
icon (
).
You can rename a
custom spot color or a custom spot color group.
-
Do any of the following:
-
To edit the
L*a*b* values directly, click in the L*, a*, or b* field and type a new
value. Use the Tab key to move from one field to
the next.
Note: You can click the arrow
next to L*a*b* to switch the editing mode to CIE LCH to edit the LCH
values directly. In the LCH mode, you may modify lightness, hue, or
chroma for the selected spot color.
-
Click
Measure to measure the L*a*b* values and
follow the on-screen instructions.
Select a
measurement instrument from the available list.
-
To edit the
CMYK percentage values directly, click in the C, M, Y, or K field and
type a new value. Use the Tab key to move from
one field to the next.
The separation
values are computed based on the selected output profile for the given
media or substrate. This may be particularly useful to remove
contaminants or visual artifacts, such as spotting, or a cloudy
appearance caused by black or cyan dots. For CMYK+ profiles, the
respective ink separation is available for editing. For example, CMYK
and Orange and Violet separation values may be edited when a CMYKOV
output profile is selected.
-
To edit a spot color visually, you can create and print spot color
variations on the Variations tab. For more
information, see Spot color variations.
-
To print a test page, with a
single spot color selected, click Print on the
Variations tab.
You can choose
the media or substrate source and the number of variations.
Matching spot
colors accurately on a monitor is very difficult. Always print a test page
to get the proper color match.
-
Do one of the following:
- Click Done to finish editing and to exit the Spot Pro color editor
pane.
- Click Cancel to abort editing, exit the Spot Pro color editor
pane, and return to the Spot Pro color preview pane.
- Click Save to save your edits
and switch to a different spot color, without leaving the Spot Pro color editor
pane.
- On the
Color Definition tab, click the Reset icon
(
) to undo your changes.