How to remove the default link color of the html hyperlink 'a' tag?

The inherit value:

a { color: inherit; } 

… will cause the element to take on the colour of its parent (which is what I think you are looking for).

A live demo follows:

a {
  color: inherit;
}

<p>The default color of the html element is black. The default colour of the body and of a paragraph is inherited. This
  <a href="http://example.com">link</a> would normally take on the default link or visited color, but has been styled to inherit the color from the paragraph.</p>

you can do some thing like this:

a {
    color: #0060B6;
    text-decoration: none;
}

a:hover 
{
     color:#00A0C6; 
     text-decoration:none; 
     cursor:pointer;  
}

if text-decoration doesn't work then include text-decoration: none !important;

If you don't want to see the underline and default color which is provided by the browser, you can keep the following code in the top of your main.css file. If you need different color and decoration styling you can easily override the defaults using the below code snippet.

 a, a:hover, a:focus, a:active {
      text-decoration: none;
      color: inherit;
 }