Appendix C. Adjusting Color Depth

Color depth is the amount of color data—and thus the maximum number of colors—that an image can accommodate. Color depth is determined by the number of bits used to store the color information of a pixel in an image.

The lowest color depth is 1 bit, which accommodates only two colors: black and white. The highest color depth in Paint Shop Pro is 24 bit, which can accommodate up to 16.7 million colors.