[CottonAge.com]

skin/fashion_mosaic_grey/css/altskin.css
or
skin/common_files/css/main.css
Find this code

.products .price-value {
  font-weight: bold;
  font-size: 12px;
  color: #b51a00;
}

Change the color

I also want to change the "save 41%". I can't seem to find where on the style sheet this is.

edit:

.products .price-save {
    color: #B51A00;
    margin: 0;
    padding: 0;
}