The present invention provides a back sheet for a solar cell module that is unlikely to increase in temperature due to irradiation with sunlight even if it appears black in appearance, and that is less likely to discolor even when used for a long period of time while suppressing an increase in cost. It is the purpose. The backsheet for a solar cell module of the present invention comprises a colored layer containing a different lightness L * 45 or three or more colorants of hues, lightness L * of the colored layer comprises a structure 40 or less. These three or more colorants are preferably at least a red colorant, a blue colorant and a yellow colorant. Furthermore, it is preferable to provide a base sheet on which this colored layer is laminated. This base material sheet is white, and it is preferable that the colored layer is laminated on the surface side of the base material sheet. Moreover, it is preferable that a base material sheet is equipped with a base film and the white layer laminated | stacked on the surface side of this base film.
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