Maria Bortugno calls it "the patchwork quilt effect."
It happens with homeowners who fall in love with a color but have a wandering eye when it comes to the other rooms in the house.
You know you've found the patchwork effect, says Bortugno, owner of B Designs in Latham, N.Y., when you stand outside the house and there's a different color of blind in every window.
"You want harmony in your home," she says. "[But] I don't want to tell people just paint their house white, because that's really not a solution. That's just fear. It doesn't need to be boring, but it does need to be harmonious."
So how do you use color from room to room without your house looking like your 3-year-old's latest art project?
Find something that you love and then work from there.
If you have a favorite upholstered chair, set of china, rug or painting, the colors that are within that likely work well together or the piece wouldn't have been created that way, says Nancy Smith, owner of Saratoga Signature Interiors in Saratoga Springs, N.Y.
So use those shades throughout your home for a unifying effect. Just be careful to keep tone in mind. Not all shades of blue work perfectly with all shades of yellow.