Tire rubber composition, and pneumatic tire

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PROBLEM TO BE SOLVED : To provide : a rubber composition for tires, whereby it becomes possible to improve discoloration resistance and the appearance of a tire while maintaining or improving good driving stability, cracking resistance and ozone resistance; and a pneumatic tire produced using the rubber composition.SOLUTION : The present invention relates to a rubber composition for tires, which contains a butadiene rubber, a natural rubber and an isoprene rubber at the content of 90 mass% or more relative to 100 mass% of a rubber component, additionally contains a nonionic surfactant of formula (1) and/or (2), sulfur, and carbon black in amounts of 2 to 70 parts by mass relative to 100 parts by mass of the rubber component, wherein R, Rand Rare different or the same and represent a hydrocarbon group having 6-26 carbon atoms, and d, e represent an integer.