Closest hex to #acfa67 is #af6

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#
#af6

acfa67

acfa67

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 f6

0f6 1f6 2f6 3f6 4f6 5f6 6f6 7f6 8f6 9f6 af6 bf6 cf6 df6 ef6 f60 f61 f62 f63 f64 f65 f66 f67 f68 f69 f6a f6b f6c f6d f6e f6f ff6

contains a6

0a6 1a6 2a6 3a6 4a6 5a6 6a6 7a6 8a6 9a6 a60 a61 a62 a63 a64 a65 a66 a67 a68 a69 a6a a6b a6c a6d a6e a6f aa6 ba6 ca6 da6 ea6 fa6