Apple AppleVision monitors (OS 7.1) - Manual (Page 27)

About white point
All lights have a white point. It’s the measurement of the color content of the
light. Midday sun has a color temperature, or white point, of 6500 degrees
Kelvin (sometimes represented as D65). Kelvin is a temperature scale used in
scientific applications.
Lighting used in graphic arts is based on a white point of 5000 degrees
Kelvin (or D50). Other common white points are 9300 degrees Kelvin (a
standard for computer monitors), 4100 degrees Kelvin (halogen light), and
3300 degrees Kelvin (fluorescent light).
Setting a white point
You can use a standard white point with your AppleVision monitor, or you
can create a custom white point based on popular color standards.
Using a white point setting
To use a standard white point, or a custom white point you’ve already created,
follow these steps:
1 Open the Monitors & Sound control panel, then click the Color button.
27 Color Settings
Select a white point.
Click to use the
color settings.