Closest hex to #218e79 is #287

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#
#287

218e79

218e79

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 87

087 187 287 387 487 587 687 787 870 871 872 873 874 875 876 877 878 879 87a 87b 87c 87d 87e 87f 887 987 a87 b87 c87 d87 e87 f87

contains 27

027 127 227 270 271 272 273 274 275 276 277 278 279 27a 27b 27c 27d 27e 27f 327 427 527 627 727 827 927 a27 b27 c27 d27 e27 f27