Michelle Schulp Hunt

Works out of the box (no coding required) to create a warm pink & neutral admin color scheme.
Based on the work by <a href="http://increasy.com/" rel="nofollow ugc">meabhisek</a> in the <a href="https://wordpress.org/plugins/romance-admin-color-scheme/" rel="ugc">Romance Color Scheme</a>, but extended to cover more of the wp-admin including media upload, focus colors, button colors and text shadows, etc.
Developers: You can use this as a base to create your own color scheme. The plugin will look for a file called admin-color.css in the root of your theme or child theme, and comes with admin-color.scss for you to edit and compile your own. 
This plugin will look for admin-color.css in the root of your theme or child theme, and override the styles used in the plugin itself. It will be a complete override, so you’ll need to move the entire file over, otherwise styles will be missing. This is a developer tool, not an options interface. You’ll need to be comfortable writing CSS and/or Sass and adding files to your theme directory.
CSS: 
In the Resources folder of the plugin, copy admin-color.css to the root of your theme or child theme, and edit colors as you like.
SCSS: 
I’ve provided a Sass file with the necessary variables to make it easier to rapidly create new color schemes. It comes with a relative URL (based on the theme root) to import the other Sass files (mixins and styles) from the plugin itself. Grab that file from the Resources folder and use it to generate your own admin-color.css quickly.

Super Thorough Admin Color Scheme

For some pink schemes, people can go overboard. This one is just right with just the right shade of darker pink. The black and grey areas have all been toned down to be restful on the eyes as well.



Does the job without being overhwelming

I love pink. I'm also excited to try it out for building a new style.



This admin theme makes me happy when I look at it

This is an amazing plugin that's very simple to use. You just install it! Bam. How simple is that. 
Why should you make your admin dashboard pink? It helps you find links that you didn't know exist. Think about that for a minute.



Very clean, super easy to see

A super-thorough admin color scheme, which happens to be pink. Works as-is without any coding, or great for developers to use to build their own style …

Paolo T. (pixline)

Greyscaper admin CSS for WordPress 2.5+. Based on ‘<a href="http://kuler.adobe.com" rel="nofollow ugc">Greyscale Paper</a>‘ color palette by victorfacius. Features three different color schemes:
<ul>
<li>(01) default</li>
<li>(02) default minor variation</li>
<li>(03) Escape scheme</li>
</ul>

Super Thorough Admin Color Scheme vs CSS:Greyscaper Admin color schemes