Closest hex to #c13c10 is #b41

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#b41

c13c10

c13c10

contains b4

0b4 1b4 2b4 3b4 4b4 5b4 6b4 7b4 8b4 9b4 ab4 b40 b41 b42 b43 b44 b45 b46 b47 b48 b49 b4a b4b b4c b4d b4e b4f bb4 cb4 db4 eb4 fb4

contains 41

041 141 241 341 410 411 412 413 414 415 416 417 418 419 41a 41b 41c 41d 41e 41f 441 541 641 741 841 941 a41 b41 c41 d41 e41 f41

contains b1

0b1 1b1 2b1 3b1 4b1 5b1 6b1 7b1 8b1 9b1 ab1 b10 b11 b12 b13 b14 b15 b16 b17 b18 b19 b1a b1b b1c b1d b1e b1f bb1 cb1 db1 eb1 fb1