The blue is not too bad, but you need to incorporate it into the rest of your site. For example where you have headers in a weird orange/brown colour, you could make them the same blue perhaps. Or just make them black but make a few other smaller elements blue.
I would also consider changing the font family used. The monetary section logo area looks really dated because of the font used and the text shadow.
Try the following code as a starting point:
h2.site-title a {
color: #ffffff;
font-family: open sans;
font-size: 3vw;
font-weight: 500;
text-shadow: none;
word-wrap: break-word;
}