Closest hex to #11bbcc is #1bc

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#
#1bc

11bbcc

11bbcc

contains 1b

01b 11b 1b0 1b1 1b2 1b3 1b4 1b5 1b6 1b7 1b8 1b9 1ba 1bb 1bc 1bd 1be 1bf 21b 31b 41b 51b 61b 71b 81b 91b a1b b1b c1b d1b e1b f1b

contains bc

0bc 1bc 2bc 3bc 4bc 5bc 6bc 7bc 8bc 9bc abc bbc bc0 bc1 bc2 bc3 bc4 bc5 bc6 bc7 bc8 bc9 bca bcb bcc bcd bce bcf cbc dbc ebc fbc

contains 1c

01c 11c 1c0 1c1 1c2 1c3 1c4 1c5 1c6 1c7 1c8 1c9 1ca 1cb 1cc 1cd 1ce 1cf 21c 31c 41c 51c 61c 71c 81c 91c a1c b1c c1c d1c e1c f1c