A powdered green tea extract composition, comprising the following components (A), (B), and (C): (A) non-polymer catechins; (B) quinic acid; and (C) a polysaccharide, wherein the powdered green tea extract composition has a volatile content of 5.6 mass% or less, wherein a mass ratio between the component (A) and the component (B), [(B)/(A)], is less than 0.2, wherein a mass ratio between the component (A) and the component (C), [(C)/(A)], is 1.2 or more, wherein, when an absolute value (Δa*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37°C and 50%RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production is obtained, the Δa* of the powdered green tea extract composition is a value less than Δa* of a powdered green tea extract composition α which has the same mass ratio [(B)/(A)] as the mass ratio [(B)/(A)] of the powdered green tea extract composition, and which is free of the component (C), and wherein a change rate calculated by the following expression is 5% or more: Δ a * − Δ a 1 * / Δ a * × 100 where Δa 1 * represents the absolute value of the difference between the a* value in the L*a*b* color system of the powdered green tea extract composition after storage under the atmosphere of 37°C and 50%RH for 6 weeks and the a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production, and Δa* represents an absolute value of a difference between an a* value in the L*a*b* color system of the powdered green tea extract composition α after storage under the atmosphere of 37°C and 50%RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition α immediately after production. (A) non-polymer catechins; (B) quinic acid; and (C) a polysaccharide, wherein the powdered green tea extract composition has a volatile content of 5.6 mass% or less, wherein a mass ratio between the component (A) and the component (B), [(B)/(A)], is less than 0.2, wherein a mass ratio between the component (A) and the component (C), [(C)/(A)], is 1.2 or more, wherein, when an absolute value (Δa*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37°C and 50%RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production is obtained, the Δa* of the powdered green tea extract composition is a value less than Δa* of a powdered green tea extract composition α which has the same mass ratio [(B)/(A)] as the mass ratio [(B)/(A)] of the powdered green tea extract composition, and which is free of the component (C), and wherein a change rate calculated by the following expression is 5% or more: Δ a * − Δ a 1 * / Δ a * × 100 where Δa 1 * represents the absolute value of the difference between the a* value in the L*a*b* color system of the powdered green tea extract composition after storage under the atmosphere of 37°C and 50%RH for 6 weeks and the a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production, and Δa* represents an absolute value of a difference between an a* value in the L*a*b* color system of the powdered green tea extract composition α after storage under the atmosphere of 37°C and 50%RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition α immediately after production. <EOS>