The color and font of the product title is controlled by the H1 tag in the stylesheet. This is from one of my sites:

h1 {
font: bold 20px Arial;
color: #4e637e;
padding: 0 0 2px 0;
margin: 0 0 17px 0 !important;
}

Changing the red highlighted will change the color. However, it would also change the color for other headings using H1. I'm sure there is a way to add a new H1 entry to the stylesheet that applies only to product titles, but somebody more skilled than I will have to come along.