From the sectional - Blue water and sky out the window. We will add in complement color pieces too but to some extent, I think the travertine acts as major accent color in the room if we go with neutral colors and maybe one accent wall. However, the ceilings are 11 or 12 feet and I am concerned about an accent wall with that volume of color.

You could use any color you like. Every thing is neutral now. Look at ballarddesigns.com They have a great selection of indoor/outdoor rugs

Thank you for giving us more guidance. There is a great community here that can help and many of us really enjoy helping. Patricia did give great advice on making sure your lighting is optimized before you move to picking colors. Different color lightbulbs can really change the way a color looks at night or when lights are turned on vs when daylight is streaming through your windows. Daylight bulbs simulate natural daylight and will have less yellow tones. For your home and color palette daylight is what I would pick. When I selected colors I really picked some pretty random colors to give you a broad choice so that we could find out where you are focused. Do you have a brand of paint that you prefer? I see that you have used SW in the past and are trying SW colors, are you adverse to Benjamin Moore? I happen to find the virtual painter in SW more user friendly, so I use it more than BM, but both really only give you a general idea of what a color will look like in your home. Computers have a long way to go before they can be used to accurately represent color. But with your feedback we know a little more about where your heart is taking you we can better assist you. Lori and I both use LCH data to help us guide people in selecting the "perfect" color. Rather than just looking at a fan deck and trying to determine what will look good in your home we can refine the search as you test colors in your space. The way color is defined is by measuring the light, chroma and hue. Light - how light or dark a color is Chroma - how gray or colorful a color is Hue - what is the core color (red, yellow, green, blue. . . ) Here are the 4 colors that were mentioned above with their LCH values plus 2 additional colors. If Agreeable Gray felt dark, Gossamer Veil is just a tinge lighter and may not be what you are looking for. I added Drift of Mist - very similar to Gossamer Veil, but lighter and a bit more gray and Egret White - very similar to Agreeable Gray, but lighter. Here are some choices surrounding Gray Wisp. One of my personal favorites is Comfort Gray, And a few between the first group and the greener hues. Test a few that you think you will like and let us know what is wrong/right about each one that you test. Try to pick a couple that are lighter, a couple that are darker and a couple different hues so you get a nice variety and can hone in on the right one. I also always have one sample of the white base and will mix a bit in when testing to see if I like the color in a lighter shade. I use oral syringes to measure how much white I am adding. Some other tips - many people will advise you to buy samples from https://samplize.com/ - it is easier than painting your own samples, but you can't play with the color. The other drawback is that it is much smoother than your walls and they are sprayed. Spraying and rolling can alter the colors. Some others will tell you to paint samples on foam core - I have the same issue with the smoothness. I personally like painting my samples on watercolor paper. https://www.amazon.com/gp/product/B00NQ49PLM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1  Here is a picture where I purchased a painted sample (left) and I purchased a gallon of paint and painted my own sample (right). I think the difference is substantial enough that I won't trust purchased samples. Gcubed also hit upon a great point that you have to sample the colors next to the colors that are going to stay and not those colors that are going away.

You guys are amazing - thank you so much for taking time out your days to answer me. I WISH we could hire a designer! We do use this as a rental but we actually have really not put much into improving it since we bought it in 2015 so it's definitely starting to show wear and tear and the walls look sort of dingey up close IMO. (havent been painted since the 90's!) I love the visual in the photoshopped picture - thank you! What are your thoughts on shiplap? Not worth it? Ultimately we rent this to pay for it but someday we hope to enjoy it ourselves more and we do go a few weeks a year so I am happy to finally be able to do a few updates if we can. What do you think of these lighting options?