Notice the color of the text in the Home state of the menu is too dark, same goes with Bio and Contact when you click to view that page.
That is the font color for the active page or current menu item. I found the rules for them by right-clicking the current page menu item in my Chrome browser and selecting the "Inspect Element" option. That opens up a web inspector that shows the HTML code for the element I clicked on an all of the CSS rules that apply to it. Browser tools like that come in really handy, so I would recommend checking them out! Firefox has an add-on that does the same thing and works really well, it's called Firebug.
Once you see the rules for what is making the current menu item font dark purple, you can copy just those and change the color to light purple by adding this to your Appearance → Custom Design → CSS page:
.menu ul .current_page_item > a,
.menu ul .current_page_ancestor > a,
.menu ul .current-menu-item > a,
.menu ul .current-menu-ancestor > a {
color: #A186A4;
}
If you don't want to indicate what the current page is, you can change the color to white, or #fff, to match the other menu items.