Closest hex to #ddff66 is #df6

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#df6

ddff66

ddff66

contains df

0df 1df 2df 3df 4df 5df 6df 7df 8df 9df adf bdf cdf ddf df0 df1 df2 df3 df4 df5 df6 df7 df8 df9 dfa dfb dfc dfd dfe dff edf fdf

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 d6

0d6 1d6 2d6 3d6 4d6 5d6 6d6 7d6 8d6 9d6 ad6 bd6 cd6 d60 d61 d62 d63 d64 d65 d66 d67 d68 d69 d6a d6b d6c d6d d6e d6f dd6 ed6 fd6