Decorative Sofa Pillows

I do not know how to blend decorative pillows for a bed, sofa or chair, etc. How do you know what colors, patterns, fabric, size, texture to use for maximum impact? How does the process designers use to find the combination of combat?

textured pillows with embellishments often look nice beside pillow of sweetness. Choose colors that is contrary or like a dark shade of green and a shade of light green.

Good luck:]