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HSL Color Model
Specifies the HSL color model for selecting colors.
Hue, saturation, and luminance are properties of colors. By manipulating the
values of these properties, you can specify a wide range of colors.
Hue (H)
Specifies the hue of a color. Hues represent a specific wavelength of light
within the visible spectrum. To specify a hue, use the color spectrum or specify
a value in the Hue box. Adjusting this value affects the RGB value. Valid hue
values are from 0 to 360 degrees.
Saturation (S)
Specifies the purity of a color. High saturation causes a color to look more
pure while low saturation causes a color to look washed-out. To specify color
saturation, use the color spectrum or specify a value in the Saturation box.
Adjusting this value affects the RGB value. Valid saturation values are from 0
to 100%.
Luminance (L)
Specifies the brightness of a color. To specify color luminance, use the color
slider or specify a value in the Luminance box. Valid luminance values are
from 0 to 100%. A value of 0% represents the color black, 100% represents
white, and 50% represents the optimal brightness for the color. Adjusting this
value also affects the RGB value.
Color Spectrum Specifies the hue and purity of a color. To specify a hue,
move the crosshairs from side to side over the color spectrum. To specify color
saturation, move the crosshairs from top to bottom over the color spectrum.
Color Slider Specifies the brightness of a color. To specify color luminance,
adjust the bar on the color slider or specify a value in the Luminance box.
RGB Color Model
Specifies the RGB color model for selecting colors. The options available on
the True Color tab are dependent on whether the HSL or RGB color model is
specified.
Colors can be broken down into components of red, green, and blue. The
values specified for each component represent the intensity of the red, green,
and blue components. The combination of these values can be manipulated
to create a wide range of colors.
Red (R)
192 | Chapter 4 C Commands