1. Tables:
Choose a light wood coffee table with a simple, rectangular design. The natural wood complements the soft, serene tones of the "Tranquility Wave" set, adding warmth and maintaining the calming atmosphere.

2. Chairs:
Opt for upholstered chairs in Anchors Away fabric with light wooden legs. This deep blue color enhances the richness of the cushions and painting, adding depth to the room while keeping the look cohesive.

3. Vases:
Use tall, cylindrical ceramic vases in White. Their clean, minimalist design will add a touch of elegance without distracting from the soft blue hues in the cushions and painting.

4. Rugs:
Choose a neutral area rug in White with a subtle texture. This adds a soft foundation to the space, ensuring that the focus remains on the tranquil blues in the decor.

5. Curtains:
Go for floor-length curtains in a soft Anchors Away tones to maintain the serene, peaceful feel of the room.

6. Lighting:
Install a light wood floor lamp with a Lichen Blue shade. This brings a subtle touch of color that echoes the blues in the cushions and painting, enhancing the overall tranquility of the space.

Note on Color Use:
Incorporate Lichen Blue in approximately 15% of the decor. This can be achieved through accent items like cushions, vases, or even small decorative objects.