Closest hex to #21863d is #284

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#
#284

21863d

21863d

contains 28

028 128 228 280 281 282 283 284 285 286 287 288 289 28a 28b 28c 28d 28e 28f 328 428 528 628 728 828 928 a28 b28 c28 d28 e28 f28

contains 84

084 184 284 384 484 584 684 784 840 841 842 843 844 845 846 847 848 849 84a 84b 84c 84d 84e 84f 884 984 a84 b84 c84 d84 e84 f84

contains 24

024 124 224 240 241 242 243 244 245 246 247 248 249 24a 24b 24c 24d 24e 24f 324 424 524 624 724 824 924 a24 b24 c24 d24 e24 f24