Soft blue-green walls can make honey oak and walnut look richer because the colors sit opposite each other in temperature. The effect is gentle when the blue is slightly muted.
Tune the atmosphere
Bring home a large sample and check it against the floor at noon and after sunset. Repeat the blue in a small ceramic or artwork so it has a reason to be there.
Notice the change
The pairing feels fresh because the cool note gives the warm wood a clearer outline.