Closest hex to #ffee00 is #fe0

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#fe0

ffee00

ffee00

contains fe

0fe 1fe 2fe 3fe 4fe 5fe 6fe 7fe 8fe 9fe afe bfe cfe dfe efe fe0 fe1 fe2 fe3 fe4 fe5 fe6 fe7 fe8 fe9 fea feb fec fed fee fef ffe

contains e0

0e0 1e0 2e0 3e0 4e0 5e0 6e0 7e0 8e0 9e0 ae0 be0 ce0 de0 e00 e01 e02 e03 e04 e05 e06 e07 e08 e09 e0a e0b e0c e0d e0e e0f ee0 fe0

contains f0

0f0 1f0 2f0 3f0 4f0 5f0 6f0 7f0 8f0 9f0 af0 bf0 cf0 df0 ef0 f00 f01 f02 f03 f04 f05 f06 f07 f08 f09 f0a f0b f0c f0d f0e f0f ff0