Closest hex to #165F66 is #166

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#166

165F66

165F66

contains 16

016 116 160 161 162 163 164 165 166 167 168 169 16a 16b 16c 16d 16e 16f 216 316 416 516 616 716 816 916 a16 b16 c16 d16 e16 f16

contains 66

066 166 266 366 466 566 660 661 662 663 664 665 666 667 668 669 66a 66b 66c 66d 66e 66f 766 866 966 a66 b66 c66 d66 e66 f66

contains 16

016 116 160 161 162 163 164 165 166 167 168 169 16a 16b 16c 16d 16e 16f 216 316 416 516 616 716 816 916 a16 b16 c16 d16 e16 f16