Closest hex to #3fc97b is #4c7

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#
#4c7

3fc97b

3fc97b

contains 4c

04c 14c 24c 34c 44c 4c0 4c1 4c2 4c3 4c4 4c5 4c6 4c7 4c8 4c9 4ca 4cb 4cc 4cd 4ce 4cf 54c 64c 74c 84c 94c a4c b4c c4c d4c e4c f4c

contains c7

0c7 1c7 2c7 3c7 4c7 5c7 6c7 7c7 8c7 9c7 ac7 bc7 c70 c71 c72 c73 c74 c75 c76 c77 c78 c79 c7a c7b c7c c7d c7e c7f cc7 dc7 ec7 fc7

contains 47

047 147 247 347 447 470 471 472 473 474 475 476 477 478 479 47a 47b 47c 47d 47e 47f 547 647 747 847 947 a47 b47 c47 d47 e47 f47