CSS text color using an HTML tag
<p style='color:#399379'>Lorem ipsum consectetur adipiscing.</p>
CSS text, background, border color using a class
.text_color{color:#399379;} /*create a class called text_color*/
.bg_color{background-color:#399379;}
.border_color{border:2px solid #399379;}
.text_color_rgb{color:rgb(57,147,121);}
.bg_opacity{background-color:rgba(57,147,121,0.5);}
<div class='text_color'>Lorem ipsum consectetur adipiscing.</p>
/*How to use the class called text_color or use another class name*/
rgba = red, green, blue, alpha where alpha is a number between 0 (Transparent) and 1 (Opaque)