The amounts differ among brands, but they all share these ingredients.
Additives. Performance boosters such as antifoaming agents and mildewcides.
Binders. Resins that turn liquid paint into a solid on the wall.
Carrier. Solvents that keep paint liquid until it's on the wall. Water is the primary carrier for latex, mineral spirits for oil paint.
Colorant. Liquid tints that add color to paint.
Pigments. Powdered minerals that give paint its hiding ability.