How do you make the color of your brick?

The color of a brick is determined by a variety of factors: the blend of clays, the temperature it is fired at, pigments such as Manganese and Chromite, and sometimes slurry coatings poured onto the brick before firing. Flashing is also a firing technique used to alter the color by reducing Oxygen which causes incomplete combustion in the kiln causing a darker shade to the brick.