No such thing exists. And there is no need for it to exist. Pillows are an accent and an accessory . They can blend with, or CONTRAST either subtly, or boldly, with paint and other fabrics such as upholstery and curtains. They will depend as well on other elements are in the room, such as rugs and carpet colors. At some point you must use your eye, and best judgement as to what you find pleasing. And as Patricia says above, once these more major ( and usually more expensive )elements are at least partially in place, THEN you go to paint colors and unite and enhance or contrast those earlier selections.

Thank you for your comments. I'm more prone to change out linens than pay for a paint contractor again, which is why I chose paint prior to selecting linens, such as pillows, etc. The options online are limitless compared to what I can find locally, which is why I was hoping for an online app. I've seen where some companies will post "inspiration" rooms highlighting their products and source the brand and color of the paint. Again, thank you for your thoughts and comments.

You could try fabric stores and make the pillows yourself. If you do not sew, maybe you could find someone to make the pillows for you. Pillows are one of the easiest things to make!

I'm afraid I have given y'all the wrong impression. I really do like mixing fabrics, patterns and colors as evident in my outdoor selection. I'm just trying to find sources that tie in particular shade of green....there are sooo many and I am relying on my IPad as afar as shades go.

in that case it might help a bit to bring up an image of the color from the BM web site to compare to your online item. yes there may be some variability in the photo but you will have eliminated the color variation in your own monitor which i find to be the biggest offender.

ever BM color has an associated image in this format.

There probably isn't a site, because wall color doesn't have to be exactly the same for a linens/pillows to feel coordinated. Your paint color is pretty neutral and I'm sure could be easily paired up. I quickly found the two below on Wayfair. Pillows in bedrooms below are not exact but look great. You could also use a cream or white solid with patterned ones which will be an easier and interesting way to go. Attached is a link to DecorPad for ideas. http://www.decorpad.com/bedrooms