I love the direction your living room design is heading! I gave you two options for throw pillows in your space. Both will work nicely with the navy in your rug and window treatments.
Place the entire set of 5 pillows on the main sofa and either the right 2 pillows or left 3 pillows for the smaller loveseat. The first color scheme pairs really well with the bold navy color scheme because it brings in the neutral colors (from the sofas and flooring) into the room through fun patterns. The light blue pillows adds a nice shade of blue that complements the navy. Overall, this option gives a sophisticated and serene look and feeling to the room.
The second option is bold. Navy is still added in through the solid pillow to anchor the sofa and brought in through the fun, patterned pillows. The emerald green is bold and colorful that will make a big statement in the room. This entire set of 5 pillows above belong on the main sofa and either the right 2 pillows or left 3 pillows for the smaller loveseat. Overall, this option will add a lot of bold colors and pattern to the room.
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