HP 54710A User's Reference Manual page 162

Hue
Hue is the gradation of color. You can use the knob, arrow keys, or keypad to
vary the hue from 0 to 100. Red is at both 0 and 100, green is at 33, and blue
is at 67.
Saturation
Saturation is the percentage of color that is mixed with white. You can use
the knob, arrow keys, or keypad to vary the percentage from 0 to 100. The 0
setting is white, regardless of the hue selection, and the 100 setting is the
pure color as determined by the hue selection.
Luminosity
Luminosity is the relative brightness of the color. You can use the knob,
arrow keys, or keypad to vary the percentage from 0 to 100. The 0 setting is
black, and the 100 setting is maximum brightness.
Default colors
The Default colors softkey sets the oscilloscope to the default colors. The
default display colors were selected for the following reasons:
•
Improve the appearance of the display.
•
Help you discern which waveform is on which channel by making each
channel a separate easy-to-identify color.
•
Bring error messages to your attention by displaying them in red.
•
However, you may prefer to change the color scheme to fit your personal
tastes. Your color choices are saved with the front-panel settings when
you save the settings to a setup memory or to a disk.
Display Menu
Color
9–19