Closest hex to #5566aa is #56a

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#56a

5566aa

5566aa

contains 56

056 156 256 356 456 556 560 561 562 563 564 565 566 567 568 569 56a 56b 56c 56d 56e 56f 656 756 856 956 a56 b56 c56 d56 e56 f56

contains 6a

06a 16a 26a 36a 46a 56a 66a 6a0 6a1 6a2 6a3 6a4 6a5 6a6 6a7 6a8 6a9 6aa 6ab 6ac 6ad 6ae 6af 76a 86a 96a a6a b6a c6a d6a e6a f6a

contains 5a

05a 15a 25a 35a 45a 55a 5a0 5a1 5a2 5a3 5a4 5a5 5a6 5a7 5a8 5a9 5aa 5ab 5ac 5ad 5ae 5af 65a 75a 85a 95a a5a b5a c5a d5a e5a f5a