Corel PaintShop Pro X7, DE User's Guide Page 652

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648 Corel PaintShop Pro X7 User Guide
either the RGB or HSL color model. You can also output images using
the CMYK (Cyan, Magenta, Yellow, Black) model, which is used for
high-end printing applications.
RGB is the default color model in Corel PaintShop Pro. For information
about changing the default color model, see “To set Palettes
preferences” on page 673. Corel PaintShop Pro uses your preferred
color model (RGB or HSL) whenever color values are displayed. When
you select colors from the Color page, you are able to enter RGB or HSL
values regardless of your preference setting. The color model used to
display color values on-screen has no effect on how colors are printed.
RGB model
All colors on your computer screen are created by mixing red, green,
and blue light in varying proportions and intensities. When these
primary colors are mixed in equal proportions, they create yellow, cyan,
and magenta. Adding all the colors together creates white.
Each primary color (red, green, and blue) is assigned a value from 0
(none of the color present) to 255 (the color at full strength). For
example, pure red is produced by combining a red value of 255, a
green value of 0, and a blue value of 0. Yellow is a combination of a
red value of 255, a green value of 255, and a blue value of 0. Setting
all three values to 255 produces white; setting all three values to 0
produces black. When all three colors are set to the same value, the
result is gray.
HSL model
The HSL model is based on how the human eye perceives color using
the characteristics of hue, saturation, and lightness. Each characteristic
is assigned a value from 0 to 255. The three characteristics are
described as follows:
Hue — the color reflected from an object, such as red, yellow, or
orange. Each hue value is assigned based on its position on the
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