A color measurement apparatus comprising: an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus; an incident light processing portion that processes light incident through the opening portion; a shutter unit configured to be displaced between a closed position at which the opening portion is covered, and an open position at which the opening portion is open; and a movement section that is formed in the opening portion forming member and, when the shutter unit at the closed position is displaced toward the open position, moves the shutter member in a direction in which the shutter member is separated from the opening portion forming member, wherein the shutter unit includes a shutter member that closes the opening portion when the shutter unit is at the closed position, a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and a pressing member that presses the shutter member toward the opening portion, and wherein the movement section includes a first protruding rib that protrudes toward the shutter member, and a second protruding rib that is formed in the shutter member and protrudes toward the opening portion forming member, when the shutter unit is at the closed position, the first protruding rib is in a state of non-contact with the second protruding rib, and when the shutter unit at the closed position is displaced toward the open position, the second protruding rib moves over the first protruding rib and causes the shutter member to move in the direction of separating from the opening portion forming member. an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus; an incident light processing portion that processes light incident through the opening portion; a shutter unit configured to be displaced between a closed position at which the opening portion is covered, and an open position at which the opening portion is open; and a movement section that is formed in the opening portion forming member and, when the shutter unit at the closed position is displaced toward the open position, moves the shutter member in a direction in which the shutter member is separated from the opening portion forming member, wherein the shutter unit includes a shutter member that closes the opening portion when the shutter unit is at the closed position, a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and a pressing member that presses the shutter member toward the opening portion, and wherein a shutter member that closes the opening portion when the shutter unit is at the closed position, a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and a pressing member that presses the shutter member toward the opening portion, and wherein the movement section includes a first protruding rib that protrudes toward the shutter member, and a second protruding rib that is formed in the shutter member and protrudes toward the opening portion forming member, a first protruding rib that protrudes toward the shutter member, and a second protruding rib that is formed in the shutter member and protrudes toward the opening portion forming member, when the shutter unit is at the closed position, the first protruding rib is in a state of non-contact with the second protruding rib, and when the shutter unit at the closed position is displaced toward the open position, the second protruding rib moves over the first protruding rib and causes the shutter member to move in the direction of separating from the opening portion forming member.