Closest hex to #ffbb11 is #fb1

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#fb1

ffbb11

ffbb11

contains fb

0fb 1fb 2fb 3fb 4fb 5fb 6fb 7fb 8fb 9fb afb bfb cfb dfb efb fb0 fb1 fb2 fb3 fb4 fb5 fb6 fb7 fb8 fb9 fba fbb fbc fbd fbe fbf ffb

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 f1

0f1 1f1 2f1 3f1 4f1 5f1 6f1 7f1 8f1 9f1 af1 bf1 cf1 df1 ef1 f10 f11 f12 f13 f14 f15 f16 f17 f18 f19 f1a f1b f1c f1d f1e f1f ff1