One of my favorite features of the WordPress 3.8 ‘About’ page is the live admin color scheme picker. WordPress 3.8 ships with eight different color schemes.
If you don’t find a favorite among the default color schemes, there are more options available using a plugin. A small group of designers have collaborated to bring WordPress users even more color schemes via Admin Color Schemes, which is receiving more interest now that 3.8 has been released. The plugin adds eight additional color schemes. If you install it, you’ll see the new colors available under your profile’s personal options in the admin.
More colors!
You can click through the various color schemes to “try them on” instantly. These additional schemes were created by professional designers Kate Whitley, Dave Whitley, Mel Choyce, and Kelly Dwan. There’s something for everyone here, from primary colors to pastels to nature-inspired palettes.
Aubergine – by Kate Whitley and Kelly Dwan
Create Your Own Color Schemes
For the more adventurous, you can check out the code of this plugin to learn how to create your own color schemes. You might be surprised to know that the backbone of the color schemes is just a handful of variables included in its scss file, defining the base, highlight, notification and action colors. You’ll need to compile your new scss file into a corresponding CSS file in order to make it work. Admin Color Schemes offers a nice model for how to do this.
Keith Davis says: 
Ian 
Lisa 