Eclectic pairings to transform a room

When changing your decor, start with the main living space to make the biggest impact. Three essential elements will add a bit of pizzazz: A solid sofa sets the tone, while vibrant prints on the chair add visual interest and the bright throw pillows help complete the color story, says Lemieux. It's not about overwhelming a space, but about layering.

If you're not ready for a major overhaul, try updating linens with seemingly mismatched patterns. A floral duvet with striped sheets and a mod headboard balance both the masculine and feminine. The headboard is a financial commitment, but the bedding can be fun and play up a contemporary feel, says Lemieux.

Mix and match using scale: a large print, a medium print, and a small print, says Lemieux. Three large prints can overwhelm a space, but by identifying three different sizes, like a small floral, a medium chevron and a bold stripe, you create harmony.

Small patterns no longer have to be reserved for large furnishings like sofas. You can do little prints on a big piece and large prints on a small piece, says Lemieux. But use caution, big prints on big pieces become the center of attention.

Rugs are a great way to bring in pattern, texture and color in a nonpermanent way, says Lemieux. Instead of traditional black-and-white patterns or taupe and brown, go wild with green and gray chevron or a graphic print in baby blue and brown.

Art is another feature to mix and match. Rather than arranging pieces by era or style, find small commonalities, like geometric shapes or subject matters, to create a common thread. Embracing the unexpected can transform a room, says Lemieux.

When pairing a vintage piece with a contemporary furnishing or accent, make sure each has a common neutral: all metallic or all black or all one material, says Lemieux. The easiest way to do this is with wood pieces or even leather chairs.

Creating random vignettes on a mantel or side table is all the rage. Don't worry about what looks good together, simply shop for what you like. Go for groups of threes in a variety of tall, medium and short—it's a classic designer trick, says Lemieux.