Closest hex to #bb11aa is #b1a

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#b1a

bb11aa

bb11aa

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

contains 1a

01a 11a 1a0 1a1 1a2 1a3 1a4 1a5 1a6 1a7 1a8 1a9 1aa 1ab 1ac 1ad 1ae 1af 21a 31a 41a 51a 61a 71a 81a 91a a1a b1a c1a d1a e1a f1a

contains ba

0ba 1ba 2ba 3ba 4ba 5ba 6ba 7ba 8ba 9ba aba ba0 ba1 ba2 ba3 ba4 ba5 ba6 ba7 ba8 ba9 baa bab bac bad bae baf bba cba dba eba fba