The same color in matte in fact that is also the finish I would choose for walls.

I love simply white but in a bright interior it looks very white. I really really love ivory white for walls if you want something softer, but I’m not sure if that’s what youre going for

RHM, I will admit that I am fussier than most about my whites. You say you want to brighten up the walls, so my first question would be "what color are your walls now?" Your trim is Alabaster - a light white that is slightly dirty with a little gray green cast, Your cabinets are somewhere between Alabaster and Dover White. If you measure the light, chroma and hue of Dover White vs Alabaster the biggest difference is the Chroma - how gray is it vs how colorful is it. Dover White is less gray so the so the color looks like it is a bit darker and does not have that slight green cast. The first number is light - So Simply white is the lightest color The second number is the chroma - the lower the chroma the more gray , the higher the chroma the more color. The third number is the hue 90 is yellow, 182 is green - this comparison gets tricky because yellow gets kind of olivish green as it goes to gray and when the chroma is really low, like in alabaster I can see that hint of green. Dover White CIE-L*Ch(ab) = 93.765 8.230 99.280° Alabaster CIE-L*Ch(ab) = 93.002 5.636 99.953° Simply White CIE-L*Ch(ab) = 95.648 4.657 106.615° Personally, the first two colors I would test are Dover White and Neutral Ground. I think Neutral Ground is a bit too dark, but I like a little contrast between the wall color and trim color, so I may do 3/4 Dover white and 1/4 Neutral Ground. How I test and blend colors to get exactly what I want is really simple. I own a box of oral medicine syringes - you can buy them from Amazon. When I find two colors that I like, but really want the color to be something in between I mix several variations of the two colors and paint them on 8 1/2 x 11 240lb water color paper. 1 cc of color A + 3 cc of color B 1 cc of color A + 2 cc of color B 2 cc of color A + 2 cc of color B 2 cc of color A + 1 cc of color B 3 cc of color A + 1 cc of color B I mark each sheet with the "recipe" and then test the colors against the colors I already have in my space.

Test both in huge samples on your walls. All color varies with exposure and its setting. Nobody here has YOUR room or your house. Paint the whole wall. There is no better way. In fact, to truly know is to paint all four walls. Simply white is warmer, but can take on a yellow green cast depending time of day, and exposure. If you are trying to paint a dim room into the light? I never find that successful. Try a "color" versus white and yes white is a color. white is at it's best in lots of natural light, multiple exposures. . A primarily northern exposure generally is not that. A "swatch" is several feet by several feet, and on several walls. : ) Best way is LARGE poster boards and move them around.......or just roll. All paint needs two coats, anyway. Your trim choice also matters.