Autodesk AUTOCAD 2006 Command Reference Manual page 251

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.
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.
Green
Specifies the green component of a color. Adjust the slider on the color bar
or specify a value from 1 to 255 in the Green box. If this value is adjusted,
it will be reflected in the HSL color mode values.
Hue
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.
Luminance
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.
Red
Specifies the red component of a color. Adjust the slider on the color bar
or specify a value from 1 to 255 in the Red box. If this value is adjusted, it
will be reflected in the HSL color mode values.
Saturation
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%.
Select Color Dialog Box | 227