to the right of the property box in the property sheet. Using the Color Builder enables you to define custom back colors for controls or sections.You can use the BackColor property to specify the color for the interior of a control or section.
Setting
The BackColor property contains a numeric expression that corresponds to the color used to fill a control's or section's interior.
You can use the Color Builder to set this property by clicking the Build button to the right of the property box in the property sheet. Using the Color Builder enables you to define custom back colors for controls or sections.
You can also set this property by using Fill/Back Color 
on the Formatting (Form/Report) toolbar, a control's or section's property sheet, a macro, or Visual Basic.
In Visual Basic, use a numeric expression to set this property. This property setting has a data type of Long.
You can set the default for this property by using a control's default control style or the DefaultControl method in Visual Basic.
For Table objects you can set this property using Fill/Back Color on the Formatting (Datasheet) toolbar, or in Visual Basic by using the DatasheetBackColor property.
Remarks
To use the BackColor property, the BackStyle property, if available, must be set to Normal.