Closest hex to #2f7288 is #378

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#
#378

2f7288

2f7288

contains 37

037 137 237 337 370 371 372 373 374 375 376 377 378 379 37a 37b 37c 37d 37e 37f 437 537 637 737 837 937 a37 b37 c37 d37 e37 f37

contains 78

078 178 278 378 478 578 678 778 780 781 782 783 784 785 786 787 788 789 78a 78b 78c 78d 78e 78f 878 978 a78 b78 c78 d78 e78 f78

contains 38

038 138 238 338 380 381 382 383 384 385 386 387 388 389 38a 38b 38c 38d 38e 38f 438 538 638 738 838 938 a38 b38 c38 d38 e38 f38