The information in this article applies to:
How do I turn off the color so that my objects display in black and white, or grayscale?
The display of color on-screen can be toggled on and off by selecting View> Color from the menu.
If Color is toggled off in any 3D view, the view will be displayed in grayscale.
If Color is toggled off in floor plan view, the view will be displayed in black and white.
You can also print in color, or grayscale, using the Print dialog. Check the Print in Color box to print in color or clear the check box to print in grayscale/black and white.