The color is more plum/purple than maroon. The tag lists the color as "Raspberry" 
 
-Quilted Knit A-Line Puff Sleeve Babydoll Mini Dress
- Tired Layers
- Round Neck
- Shirring Short Sleeve Designs 
- Back Buttons
- Side Pockets 
 
Model is 5'7" and wearing a small. I would say this runs true to size.