Hello! If you haven't decided on a color yet, look at a color wheel chart. Your kitchen/dining area will feel more open & brighter if you explore greens & blues for the walls (which look great w/ chocolate brown curtains, maple cabinets, & the multitude of reddish/brown/beige tones in the counter material. If you can acquire samples of your countertop & tile floor, take them with you to the paint store. Select all the blues & greens that are appealing- don't be too discerning right now- just let your eyes & heart select color swatches. The reason I say not to hyper analyze your color choices at the store is because of the lighting. You really need to see the colors in your own space, at night & during the day, when it's sunny or grey. As someone else suggested, once you pick your final 2 or 3 faves, buy the sample sizes & paint them up on scrap wood or poster board. Move them about to get a sense of how the color will change. *Make sure you are orienting your painted up sample boards vertically. This may seem obvious but so often folks analyze color on the same plane with their samples forgetting that the paint will be perpendicular to the countertops & floor surfaces. (Again this goes back to lighting- the angle it hits the wall, natural vs incandescent, direct vs indirect, etc). Lastly, I love Benjamin Moore paints. They offer the best sheens & finishes, various price levels, low & zero VOC options, & their product has the best coverage- meaning less gallons for the job! Check em out! All the best!