We have determined the ratios of total to selective extinction in the near-infrared bands (J, H, KS) toward the Galactic center from the observations of the region |l| < 2.0^o and 0.5^o < |b| < 1.0^o with the IRSF telescope and the SIRIUS camera. Using the positions of red clump stars in color-magnitude diagrams as a tracer of the extinction and reddening, we determine the average of the ratios of total to selective extinction to be A_KS/E_H-KS = 1.44+/-0.01, A_KS/E_J-KS = 0.494+/-0.006, and A_H/E_J-H =1.42+/-0.02, which are significantly smaller than those obtained in previous studies. >From these ratios, we estimate that A_J : A_H : A_KS = 1 : 0.573 +/- 0.009 : 0.331 +/- 0.004 and E_J-H/E_H-KS = 1.72 +/- 0.04, and we find that the power law A_ lambda proportional to lambda -1.99 +/- 0.02 is a good approximation over these wavelengths. Moreover, we find a small variation in A_KS/E_H-KS across our survey. This suggests that the infrared extinction law changes from one line of sight to another, and the so-called ``universality'' does not necessarily hold in the infrared wavelengths.
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