Microsoft Office Tutorials and References
In Depth Information
Understanding Color Selection
FIGURE 9.27
Use the Custom tab of the Colors dialog box to precisely dei ne a color that you want to use.
You can defi ne colors numerically using either the HSL (hue, saturation, and lumi-
nosity) or RGB (red, green, blue) color models. Choose the color model that you want
from the Color Model drop-down list.
If you are using the HSL model, you can type the numbers into the Hue, Sat, and
Lum fi elds on the Custom tab. The hue is the tint (that is, green versus blue versus
red). A low number is a color at the red end of the spectrum, while a high number is
a color at the violet end. Saturation refers to the vividness of the color, and lumi-
nosity is the lightness or darkness. A high luminosity mixes the color with white,
while a low luminosity mixes the color with black.
An alternative way to defi ne colors is by specifying numbers for red, green, and
blue. Using this measurement, 0, 0, 0 is pure black and 255, 255, 255 is pure white.
All other colors are some combination of the three colors. For example, pure blue
is 0, 0, 255. A very pale blue would be 200, 200, 255. You can play around with the
numbers in the fi elds on the Custom tab. The new color appears in the New area
near the bottom of the dialog box. Click OK to accept your choice.
9
You can create an interesting see-through effect with a color by using the transparency slider. When this slider is
used for a color, it creates an effect like a watercolor paint wash over an item so that whatever is beneath it can par-
tially show through. For photos, you can get a similar tint effect for the whole picture using the Color drop-down list
on the Picture Tools Format tab.
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