Scatter Cushions? Are you 90? Do you mean Decorative Toss Pillows?

Great selection of pillow covers on Etsy.

Beverly, you're a hoot. I call them "throw pillows." Actually, I call them "those stupid throw pillows." Until I need one for my back.

Lumbar pillows are hitting the trend meter hard right now. I'd buy several lumbar pillows to add to the mix, to be on the edge of what's upcoming...and you'll like the look longer. :0)

These two are from Ballard Design...

Arhaus has an incredible sale on velvet lumbar pillows $18.90ea...chinchilla color or Lichen..Click to see

@BeverlyFLADeziner, "are you 90"? That's a no-no. I am getting close.

Back to the future. Tray on ottoman; art on walls in the darker tones of your furniture.

Annie Selke pillows

@BeverlyFLADeziner - wow - that comment seemed a bit rude.

Scatter cushions is a commonly used in the U.K.

Just like "throw pillows" is commonly used in the U.S, ("decorative toss pillows" a less used term - unless they are only for show and never to be leaned on or used otherwise).

So many options on Etsy:

There are hundreds more. Depends on what you like.

Well the term scatter cushions was used in the 50s, so I drew a conclusion.

If you mean to connect the colors in the room and the chair cushions, then if possible I would look for one or 2 prints or patterns that have your preferred green and blue PLUS a touch of a brown or caramel neutral as in the furniture. This can be just a small amount, like part of a flower or other nature item in the print, or in an abstract print..

If you’re a but particular about what you look at frequently, I’d takd my time browsing and see if something really speaks to you, the pattern or the freshness of the colors.
I like to use washable zipper covers and fabrics that feel nice like cotton or linen. You can search for these features.
It can be more hassle to return things from some vendors. Well, for me anyway. If you don’t even know at first how to choose colors, if have some discount home stores nearby you could bring home a couple of things to try out & focus your search, but return them.