Closest hex to #bb6bb6 is #b6b

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#b6b

bb6bb6

bb6bb6

contains b6

0b6 1b6 2b6 3b6 4b6 5b6 6b6 7b6 8b6 9b6 ab6 b60 b61 b62 b63 b64 b65 b66 b67 b68 b69 b6a b6b b6c b6d b6e b6f bb6 cb6 db6 eb6 fb6

contains 6b

06b 16b 26b 36b 46b 56b 66b 6b0 6b1 6b2 6b3 6b4 6b5 6b6 6b7 6b8 6b9 6ba 6bb 6bc 6bd 6be 6bf 76b 86b 96b a6b b6b c6b d6b e6b f6b

contains bb

0bb 1bb 2bb 3bb 4bb 5bb 6bb 7bb 8bb 9bb abb bb0 bb1 bb2 bb3 bb4 bb5 bb6 bb7 bb8 bb9 bba bbb bbc bbd bbe bbf cbb dbb ebb fbb