Pressure-responsive particles comprising: pressure-responsive base particles; and silica particles, wherein the pressure-responsive base particles contain a styrene-based resin that contains styrene and other vinyl monomers as polymerization components, the pressure-responsive particles have at least two glass transition temperatures, a difference between a lowest glass transition temperature and a highest glass transition temperature is 30°C or higher, and a ratio of a surface coating rate Cs2 of the pressure-responsive particles by the silica particles after application of the following first stress to a surface coating rate Cs1 of the pressure-responsive particles by the silica particles before application of stress satisfies a relationship of 0.4 ≤ Cs2/Cs1 ≤ 0.8, first stress: 10 g of the pressure-responsive particles and 90 g of resin-coated ferrite particles are put in a V-shaped mixer with a rotary container having a volume of 0.5 L and rotated at a rotation speed of 40 rpm for 20 minutes at a temperature of 20°C and a relative humidity of 50%, wherein an amount of silicon is analyzed by X-ray photoelectron spectroscopy, a calibration curve is plotted from a set of silica particles and pressure-responsive particles free of silica, and the amount of silicon of pressure-responsive particles before the application of stress or pressure-responsive particles after the application of the first stress is applied thereto to calculate the surface coating rate Cs1 or the surface coating rate Cs2, the pressure-responsive particles characterized in that the pressure-responsive base particles further contain a (meth)acrylic acid ester-based resin that contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which a ratio of a mass of the (meth) acrylic acid esters to a total mass of polymerization components is 90% by mass or more, wherein the at least two kinds of (meth)acrylic acid esters are selected from the group consisting of a (meth)acrylic acid alkyl ester, a (meth)acrylic acid carboxy-substituted alkyl ester, a (meth)acrylic acid hydroxy-substituted alkyl ester, a (meth)acrylic acid alkoxy-substituted alkyl ester and a di(meth)acrylic acid ester. pressure-responsive base particles; and silica particles, wherein the pressure-responsive base particles contain a styrene-based resin that contains styrene and other vinyl monomers as polymerization components, the pressure-responsive particles have at least two glass transition temperatures, a difference between a lowest glass transition temperature and a highest glass transition temperature is 30°C or higher, and a ratio of a surface coating rate Cs2 of the pressure-responsive particles by the silica particles after application of the following first stress to a surface coating rate Cs1 of the pressure-responsive particles by the silica particles before application of stress satisfies a relationship of 0.4 ≤ Cs2/Cs1 ≤ 0.8, first stress: 10 g of the pressure-responsive particles and 90 g of resin-coated ferrite particles are put in a V-shaped mixer with a rotary container having a volume of 0.5 L and rotated at a rotation speed of 40 rpm for 20 minutes at a temperature of 20°C and a relative humidity of 50%, wherein an amount of silicon is analyzed by X-ray photoelectron spectroscopy, a calibration curve is plotted from a set of silica particles and pressure-responsive particles free of silica, and the amount of silicon of pressure-responsive particles before the application of stress or pressure-responsive particles after the application of the first stress is applied thereto to calculate the surface coating rate Cs1 or the surface coating rate Cs2, the pressure-responsive particles characterized in that the pressure-responsive base particles further contain a (meth)acrylic acid ester-based resin that contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which a ratio of a mass of the (meth) acrylic acid esters to a total mass of polymerization components is 90% by mass or more, wherein the at least two kinds of (meth)acrylic acid esters are selected from the group consisting of a (meth)acrylic acid alkyl ester, a (meth)acrylic acid carboxy-substituted alkyl ester, a (meth)acrylic acid hydroxy-substituted alkyl ester, a (meth)acrylic acid alkoxy-substituted alkyl ester and a di(meth)acrylic acid ester.