Since your room gets plenty of sunlight your color options are quite broad.

For your main color, we chose to use green because it is soothing to the eye. It reminds us of nature and has a refreshing, stress relieving quality. Green is suitable for any room. In bedrooms it’s relaxing and pleasing, while in dining rooms it promotes overall balance and health. This soothing color encourages relaxation or tranquility, but has enough warmth to encourage comfort and harmony.

Use an eggshell finish paint which has a very light touch of shine (similar texture to an eggshell as implied by its name). This finish is very often used for walls and is more durable and easier to clean than matte finish