Closest hex to #81a2fb is #8af

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#
#8af

81a2fb

81a2fb

contains 8a

08a 18a 28a 38a 48a 58a 68a 78a 88a 8a0 8a1 8a2 8a3 8a4 8a5 8a6 8a7 8a8 8a9 8aa 8ab 8ac 8ad 8ae 8af 98a a8a b8a c8a d8a e8a f8a

contains af

0af 1af 2af 3af 4af 5af 6af 7af 8af 9af aaf af0 af1 af2 af3 af4 af5 af6 af7 af8 af9 afa afb afc afd afe aff baf caf daf eaf faf

contains 8f

08f 18f 28f 38f 48f 58f 68f 78f 88f 8f0 8f1 8f2 8f3 8f4 8f5 8f6 8f7 8f8 8f9 8fa 8fb 8fc 8fd 8fe 8ff 98f a8f b8f c8f d8f e8f f8f