A photoelectric conversion element comprising in this order: an anode ; a photoelectric conversion layer ; and a cathode , the photoelectric conversion layer containing a first organic semiconductor, a second organic semiconductor, and a third organic semiconductor, wherein the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor each comprise an organic semiconductor molecule having a molecular weight of 1500 or less, wherein one of the first organic semiconductor and the second organic semiconductor is a p-type semiconductor, and another is an n-type semiconductor, wherein the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor have mass ratios that satisfy the following relationship: the first organic semiconductor ≥ the second organic semiconductor ≥ the third organic semiconductor, and wherein, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass%, a content of the second organic semiconductor is 6 mass% or more, and a content of the third organic semiconductor is 3 mass% or more, characterised in that , when a solubility parameter of the first organic semiconductor is represented by SP1, a solubility parameter of the second organic semiconductor is represented by SP2, and a solubility parameter of the third organic semiconductor is represented by SP3, the SP1, the SP2, and the SP3 satisfy the following expression and expression . SP 1 − SP 2 > SP 2 − SP 3 SP 1 − SP 3 > SP 2 − SP 3 an anode ; a photoelectric conversion layer ; and a cathode , the photoelectric conversion layer containing a first organic semiconductor, a second organic semiconductor, and a third organic semiconductor, wherein the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor each comprise an organic semiconductor molecule having a molecular weight of 1500 or less, wherein one of the first organic semiconductor and the second organic semiconductor is a p-type semiconductor, and another is an n-type semiconductor, wherein the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor have mass ratios that satisfy the following relationship: the first organic semiconductor ≥ the second organic semiconductor ≥ the third organic semiconductor, and wherein, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass%, a content of the second organic semiconductor is 6 mass% or more, and a content of the third organic semiconductor is 3 mass% or more, characterised in that , when a solubility parameter of the first organic semiconductor is represented by SP1, a solubility parameter of the second organic semiconductor is represented by SP2, and a solubility parameter of the third organic semiconductor is represented by SP3, the SP1, the SP2, and the SP3 satisfy the following expression and expression . SP 1 − SP 2 > SP 2 − SP 3 SP 1 − SP 3 > SP 2 − SP 3 the first organic semiconductor ≥ the second organic semiconductor ≥ the third organic semiconductor, and wherein, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass%, a content of the second organic semiconductor is 6 mass% or more, and a content of the third organic semiconductor is 3 mass% or more, characterised in that , when a solubility parameter of the first organic semiconductor is represented by SP1, a solubility parameter of the second organic semiconductor is represented by SP2, and a solubility parameter of the third organic semiconductor is represented by SP3, the SP1, the SP2, and the SP3 satisfy the following expression and expression . SP 1 − SP 2 > SP 2 − SP 3 SP 1 − SP 3 > SP 2 − SP 3 <EOS>