What kind of colours do cubists normally use. If you mean the material paint they used many different kinds.?

If you mean the visible colors (red, blue, etc.) the answer varies with the artists. The originators of cubism - Picasso and Braque - concentrated during the first two years on browns, greys and black. In the following few years they drew with coal and pencil and pasted things like newspaper print or patterned paper into the picture. Their later work includes all types of colour, but may not be called cubistic. Other artists, as e.g. Juan Gris used vivid reds, blues, greens etc.