How to Choose Throw Pillows | Decorating Without The Guesswork

Choosing throw pillows comes down to one color palette, three pattern sizes, and inserts two inches larger than the cover.

Walk into any home store and you’re facing hundreds of pillows with no clear system for picking the right ones. The process gets simpler when you treat it as a formula: settle on a palette first, then mix one solid with one small print and one bold pattern, and finish with inserts that make the whole thing look plush instead of flat.

Start With A Cohesive Color Palette

The fastest way to make a pillow arrangement look intentional is to limit yourself to a single palette. Pick one shade and vary it across textures, or choose two complementary colors that already exist in your room’s rug, art, or upholstery.

Resist the pull of buying individual pillows you love that don’t relate to each other. A set of mismatched colors reads as clutter, not style.

Mix Pattern Scale Instead Of Matching Prints

The rule that interior designers return to again and again is a three-part formula: one solid, one small-scale print, and one large or busy print. That combination gives the eye contrast without visual chaos.

Pattern scale matters more than the prints matching. A small geometric and a large floral can share a color family and still harmonize, while two medium-sized prints of similar density tend to compete.

Get The Size And Placement Right

Larger pillows anchor the outer corners of the sofa, with smaller ones moving toward the center. A standard sofa typically starts with 20-inch square pillows, while low-back contemporary couches look better with 18-inch or even 16-inch squares.

For a fuller layered look, some guides recommend 22–24 inch pillows in the back row, stepping down by about two inches toward the front. A lumbar pillow — usually 12 to 14 inches high by 24 to 26 inches wide — adds a contrasting shape that breaks up a row of squares.

Groupings of three or five pillows read as balanced. Filling the entire sofa with cushions defeats the purpose, since nobody wants to move a mountain of pillows just to sit down.

Choose The Insert And Fabric Wisely

The insert determines whether your pillow looks full or deflated. Buy an insert that’s larger than the cover — one to two inches bigger, with two inches being the sweet spot for a truly plump look. A 22-inch cover pairs with a 24-inch insert.

Down fill holds its shape and fluffs back up beautifully, making it the preferred choice for comfort. If allergies rule out down, a down-alternative insert offers similar softness without the allergen trigger.

Fabric choice should match the room’s traffic. Family rooms and homes with pets call for sturdy, washable weaves, while a master bedroom can handle silk and other delicate luxury fabrics. Whatever you buy, inspect the seams and the fill — thin fabric, weak stitching, or lumpy polyester padding will sag within months.

When washing machine-safe covers, use cold water on a gentle cycle and dry on low heat, skipping bleach entirely.

If you swap covers with the seasons, standard square sizes make mixing and matching painless. A 20-inch cover works with nearly any 22-inch insert, and the two-piece system lets you refresh a room without replacing the expensive fill.

Ready to shop? Our tested roundup of awesome throw pillows worth buying covers the best options across styles and budgets.

Steer clear of the common pitfalls: too many unrelated prints, pillows undersized for the sofa, overcrowded seating, and construction that won’t survive regular use. One palette, three pattern sizes, and generous inserts solve most of those problems before they start.