A hot stamped steel consisting of, by mass%: C: more than 0.150% to 0.300%; Si: 0.010% to 1.000%; Mn: 1.50% to 2.70%; P: 0.001% to 0.060%; S: 0.001% to 0.010%; N: 0.0005% to 0.0100%; and Al: 0.010% to 0.050%; and optionally one or more of B: 0.0005% to 0.0020%; Mo: 0.01% to 0.50%; Cr: 0.01% to 0.50%; V: 0.001% to 0.100%; Ti: 0.001 % to 0.100%; Nb: 0.001% to 0.050%; Ni: 0.01% to 1.00%; Cu: 0.01% to 1.00%; Ca: 0.0005% to 0.0050%; and REM: 0.0005% to 0.0050%; and a balance of Fe and unavoidable impurities, wherein, when represents an amount of C by mass%, [Si] represents an amount of Si by mass%, and [Mn] represents an amount of Mn by mass%, a following expression (a) is satisfied, a metallographic structure consists of 80% or more of a martensite in an area fraction, and optionally, further includes one or more of 10% or less of a pearlite in an area fraction, 5% or less of a retained austenite in a volume ratio, 20% or less of a ferrite in an area fraction, and less than 20% of a bainite in an area fraction, TS × λ which is a product of TS that is a tensile strength and λ that is a hole expansion ratio is 50000 MPa·% or more, and a hardness of the martensite measured with a nanoindenter satisfies a following expression (b) and a following expression (c), 5 × Si + Mn / C > 10 H 2 / H 1 < 1.10 σ ⁢ HM < 20 here, the H1 represents an average hardness of the martensite in a surface portion, the H2 represents the average hardness of the martensite in a center part of a sheet thickness that is an area having a width of ±100 μm in a thickness direction from a center of the sheet thickness, and the σHM represents a variance of the hardness of the martensite existing in the central part of the sheet thickness. C: more than 0.150% to 0.300%; Si: 0.010% to 1.000%; Mn: 1.50% to 2.70%; P: 0.001% to 0.060%; S: 0.001% to 0.010%; N: 0.0005% to 0.0100%; and Al: 0.010% to 0.050%; and optionally one or more of B: 0.0005% to 0.0020%; Mo: 0.01% to 0.50%; Cr: 0.01% to 0.50%; V: 0.001% to 0.100%; Ti: 0.001 % to 0.100%; Nb: 0.001% to 0.050%; Ni: 0.01% to 1.00%; Cu: 0.01% to 1.00%; Ca: 0.0005% to 0.0050%; and REM: 0.0005% to 0.0050%; and a balance of Fe and unavoidable impurities, wherein, when represents an amount of C by mass%, [Si] represents an amount of Si by mass%, and [Mn] represents an amount of Mn by mass%, a following expression (a) is satisfied, a metallographic structure consists of 80% or more of a martensite in an area fraction, and optionally, further includes one or more of 10% or less of a pearlite in an area fraction, 5% or less of a retained austenite in a volume ratio, 20% or less of a ferrite in an area fraction, and less than 20% of a bainite in an area fraction, TS × λ which is a product of TS that is a tensile strength and λ that is a hole expansion ratio is 50000 MPa·% or more, and a hardness of the martensite measured with a nanoindenter satisfies a following expression (b) and a following expression (c), 5 × Si + Mn / C > 10 H 2 / H 1 < 1.10 σ ⁢ HM < 20 here, the H1 represents an average hardness of the martensite in a surface portion, the H2 represents the average hardness of the martensite in a center part of a sheet thickness that is an area having a width of ±100 μm in a thickness direction from a center of the sheet thickness, and the σHM represents a variance of the hardness of the martensite existing in the central part of the sheet thickness.