(V − I), (V − J), (V − H), (V − K) vs. (B − V) two-color diagrams for the 135 stars (gray filled circles) with good photometric data (photometric errors <0.1 mag in BVRIJHK-bands) are plotted. The black filled circles denote 26 stars with both polarimetric and photometric data. The dashed lines are drawn using the color–color slopes mentioned in Table 7 to represent the normal reddening law, whereas the thick and gray straight lines denote the error-weighted straight line fits using 26 and 135 stars respectively. We excluded stars with possible intrinsic polarization (#48, #59, #83, #90, and #97) from this analysis. We also excluded four stars, #14, #42, #116, and #118, shown with filled star symbols, considering them as M-type dwarfs based on their location in the (V − I) vs. (B − V) plot. The thick curve shows the M-dwarf locus taken from Peterson & Clemens (1998). The reddening vector for a normal reddening law is drawn for A_V = 2 mag.