OK is a bit more ... how shall I put this ... monochromatic than AL. Holder’s people voted for 0...
Monochromatic would be mostly correct for the more rural areas but the metro areas definitely have a complete color palette. As to AL, I’ve passed through three times in recent years, noticing that monochromatic could apply there, too, but only using your noted Holder scale.
Best AL attraction: Robert Trent Jones Golf Trail.