For some reason Chrome forces it to be semi-transparent. However, you can get around this by setting the background
using rgba. I have set the alpha value to be just 0.01 less than 1. Live example: http://jsfiddle.net/tw16/m8End/
p::-moz-selection {
background:rgba(255, 255, 125, 0.99);
color:#032764;
}
p::-webkit-selection {
background:rgba(255, 255, 125, 0.99);
color:#032764;
}
p::selection {
background:rgba(255, 255, 125, 0.99);
color:#032764;
}