My walls came back too desaturated or the white balance is off — how do I fix it?

Two quick options to fix this.

AI Re-Paint

Use the Re-Paint tool and select the exact hex color you want the wall to be. It rebuilds the wall in that color and leaves the rest of the photo untouched.

Color sliders

Under the color selection in Basic Adjustments, select the color closest to the wall — then manipulate the hue, saturation, and luminance until you get the exact paint color you want.