Closest hex to #177121 is #172

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#172

177121

177121

contains 17

017 117 170 171 172 173 174 175 176 177 178 179 17a 17b 17c 17d 17e 17f 217 317 417 517 617 717 817 917 a17 b17 c17 d17 e17 f17

contains 72

072 172 272 372 472 572 672 720 721 722 723 724 725 726 727 728 729 72a 72b 72c 72d 72e 72f 772 872 972 a72 b72 c72 d72 e72 f72

contains 12

012 112 120 121 122 123 124 125 126 127 128 129 12a 12b 12c 12d 12e 12f 212 312 412 512 612 712 812 912 a12 b12 c12 d12 e12 f12