Closest hex to #b72b72 is #b37

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#b37

b72b72

b72b72

contains b3

0b3 1b3 2b3 3b3 4b3 5b3 6b3 7b3 8b3 9b3 ab3 b30 b31 b32 b33 b34 b35 b36 b37 b38 b39 b3a b3b b3c b3d b3e b3f bb3 cb3 db3 eb3 fb3

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 b7

0b7 1b7 2b7 3b7 4b7 5b7 6b7 7b7 8b7 9b7 ab7 b70 b71 b72 b73 b74 b75 b76 b77 b78 b79 b7a b7b b7c b7d b7e b7f bb7 cb7 db7 eb7 fb7