PROBLEM TO BE SOLVED: To provide a color composition allowing suppression of occurrence of a residue on another color pattern and suppression of occurrence of coating defects; a color pattern with excellent color separation property and without any coating defect, a color filter comprising the color pattern, and a manufacturing method thereof; a pattern formation method allowing suppression of occurrence of a residue on another color pattern and suppression of occurrence of coating defects; and a solid state image sensor with excellent color separation property, and an image display device.SOLUTION: A color composition contains a resin (A) having a dye structure, where a peak area occupied by a component having a molecular weight of 20,000 or more in the above resin (A) as measured by a gel permeation chromatography is 10% or less relative to the whole peak area of the molecular weight distribution of the above resin (A).