PROBLEM TO BE SOLVED: To provide an anemia checker suitable as an objective index when anemia is suspected.SOLUTION: On an anemia checker 10 for determining whether or not anemia is present by comparing a color of eyelid conjunctiva with the anemia checker, a plurality of red colors (red color 5, red color 10, red color 20, red color 30, red color 40, and red color 50) whose S values (color saturation) in an HSV color space are different from one another are displayed being aligned in a longitudinal direction. The red color that serves as a reference is of H value=360, S value=100, and V value=100 in the HSV value (H value:0-360°, S value:0-100%, and V value:0-100%).
