Closest hex to #18b1b2 is #1aa

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#1aa

18b1b2

18b1b2

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 aa

0aa 1aa 2aa 3aa 4aa 5aa 6aa 7aa 8aa 9aa aa0 aa1 aa2 aa3 aa4 aa5 aa6 aa7 aa8 aa9 aaa aab aac aad aae aaf baa caa daa eaa faa

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