Interstar Powder Pigments are available in a variety of standard colors. In addition, the color development and matching services of the Interstar Color Laboratory offers controlled, custom-blended pigments to meet your own special color requirements. Colour of the concrete may depend on how much pigment is added. Please consult the colour chart. Some of these bags may have multiple colour intensities and may therefore require 1, 2 or sometimes 3 bags per cubic meter of concrete.