#808000

(Olive) rgb(128,128,0)

Δ ligthness

#333300

#808000

#999900

#cccc00

#ffff00

#ffff33

#ffff66

#ffff99

#ffffcc

Δ saturation - Δ hue

CSS & HTML COLOR CODES

CSS text color using an HTML tag

 <p style='color:#808000'>Lorem ipsum consectetur adipiscing.</p>

CSS text, background, border color using a class

 .text_color{ color:#808000; } /*create a class called text_color*/

 .color_name{ color:Olive; }

 .background_color{ background-color:#808000; }

 .border_color{ border:2px solid #808000; }

 .text_color_rgb{ color:rgb(128,128,0); }

 .bg_opacity{ background-color:rgba(128,128,0,0.5); }

 <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)