Closest hex to #3f1b30 is #423

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#423

3f1b30

3f1b30

contains 42

042 142 242 342 420 421 422 423 424 425 426 427 428 429 42a 42b 42c 42d 42e 42f 442 542 642 742 842 942 a42 b42 c42 d42 e42 f42

contains 23

023 123 223 230 231 232 233 234 235 236 237 238 239 23a 23b 23c 23d 23e 23f 323 423 523 623 723 823 923 a23 b23 c23 d23 e23 f23

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