
Chapter 6: Creating Drawings with Draw
The colour models RGB and CMYK are just two of the models most used to define colours.
RGB stands for red-green-blue and this model is particularly useful for colours being
displayed on a computer monitor as it combines the three basic colours used. CMYK stands
for Cyan-Magenta -Yellow-black or Cyan- Magenta -Yellow-Key and is
the colour model that best describes the subtractive colours used in printing. Select the
colour model that corresponds to the desired output medium (monitor or a printer). When
exporting image files, it is best to ask the photo-exposure service in which colour model
and format the image is expected.
3. Define the colours by modifying the values in the spin boxes. Enter values directly, or
click the buttons to change the existing values. The result is shown immediately in the
lower preview box.
If selecting colours from a colour spectrum is preferable to specifying the values with the
spin buttons, click Edit. This opens the colour dialogue. In this dialogue it is also possible
to specify the colour in the HSV or HSB (Hue-Saturation- Value/Brightness)
model. Select the colour and click OK.
4. Once a new colour is chosen, specify whether it should replace the original colour or be
defined independently.
Note: It is recommended that only custom-defined colours be replaced.
1. To replace the colour displayed in the upper preview box, click Modify.
2. To set the new user-defined colour, assign a name to the colour in the Name field, and
click Add and OK.
The new colour will immediately be added to the palette of existing colours; however, if the
dialogue is exited by using the Cancel button, the colour of the current object does not
change.
Nonetheless, the modifications in the colour palette do remain in effect.
Further instructions on saving and loading the colour palette and other palette files are found
in Help.
OpenOffice.org User Guide for 2.x 337
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