The term RGB is an acronym for Red, Green, Blue– the three primary colors used to create a composite color.
Any color you specify will be made up of various intensities of red, green and blue. So, for example, red would be made of high intensity red with no green or blue; black would have no red, green or blue; and white would have full intensity red, green and blue. The intensity of each color ranges from 0 (no intensity) to 255 (full intensity).
The DataFlex color scheme supports both physical and logical colors known as Standard and System, respectively.