Closest hex to #309d06 is #390

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#
#390

309d06

309d06

contains 39

039 139 239 339 390 391 392 393 394 395 396 397 398 399 39a 39b 39c 39d 39e 39f 439 539 639 739 839 939 a39 b39 c39 d39 e39 f39

contains 90

090 190 290 390 490 590 690 790 890 900 901 902 903 904 905 906 907 908 909 90a 90b 90c 90d 90e 90f 990 a90 b90 c90 d90 e90 f90

contains 30

030 130 230 300 301 302 303 304 305 306 307 308 309 30a 30b 30c 30d 30e 30f 330 430 530 630 730 830 930 a30 b30 c30 d30 e30 f30