Repaint with latex paint available in flat to gloss. You can find a Benjamin Moore paint store on this map.. http://www.shearerpainting.com/blog/retailers-that-carry-benjamin-moore-paint-in-the-united-states/

Some color suggestions - In this lime family when you go green, don't do such a saturated color to precisely match your fabric. Your tan and green that are matching the fabric will not play well together in the space. Try something a bit lighter but still full of color on the green - like this dancing green http://www.sherwin-williams.com/homeowners/color/find-and-explore-colors/paint-colors-by-family/SW6716-dancing-green/ Then, you've got to find a neutral that works great next to the green. See this http://www.sherwin-williams.com/homeowners/color/find-and-explore-colors/paint-colors-by-family/SW7531-canvas-tan/ I would take the long wall in the great room and do it green, and do everything else in the tan. That will give you the bright feeling you wanted - make it fun and modern, but do it so that it reads for the whole room. Put lots of white framed art and black storage furniture on it and wowsa. Use lime accents in your kitchen and put red chair pads on your dining room chairs. Have some fun! It's only paint, you can always do it again.

Try BM Chantilly Lace...I've had success with it paired with both grays and blues.

My kitchen and hallway are painted the same color. When I had it re-painted (same color), the painter correctly matched the kitchen paint to the Benjamin Moore color fan, then went into the hallway to do the same. He didn't believe at first when I told him that the color in the hallway was the same, because it looked so different in the hallway light.