What is the difference between a light base and regular latex paint?

The primary difference between Deep-Base and Medium-Base paint is the amount of room there is can to allow for tint to be added into. Example, most paint companys allow for 12-14 ounces of colorant for a Deep-Base and 8-12 ounces of colorant for a Medium-Base. When painting with deep base colors such there is a slightly different application approach to take than when working with lighter colors. This is because the tint base used for these colors lacks white pigment (titanium dioxide). Titanium dioxide is what gives a paint hide and coverage; without white pigment the paint must be built up or layered with multiple coats. Deep base colors can take 3 or more coats for full coverage. In addition to this, many deep base colors also require a tinted primer in order to help with hide and coverage.