Closest hex to #0f3c30 is #143

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#
#143

0f3c30

0f3c30

contains 14

014 114 140 141 142 143 144 145 146 147 148 149 14a 14b 14c 14d 14e 14f 214 314 414 514 614 714 814 914 a14 b14 c14 d14 e14 f14

contains 43

043 143 243 343 430 431 432 433 434 435 436 437 438 439 43a 43b 43c 43d 43e 43f 443 543 643 743 843 943 a43 b43 c43 d43 e43 f43

contains 13

013 113 130 131 132 133 134 135 136 137 138 139 13a 13b 13c 13d 13e 13f 213 313 413 513 613 713 813 913 a13 b13 c13 d13 e13 f13