I have changed every possible Hex number but the font colour does not change, I need it to be black and bold, any ideas where I am going wrong?

http://www.lavenderblueflowers.com/

Have you played with ATO->Widgets->Widget List Items
Note that changing these will effect all widgets. If you just want to effect the pages widget put this in ATO->HTML/CSS INSERTS->CSS Inserts

.widget_pages ul li a:link, 
.widget_pages ul li a:visited, 
.widget_pages ul li a:active {
	padding: 0 0 0 5px; 
	color: #000000; 
	font-weight: bold;
	border-left: solid 7px #000000;

The 'color: #000000;' says it will be black

That fixed it, many thanks.