From 3.8 update WordPress provides you six awesome admin area color schemes and now Admin Color Schemes plugin has also been updated so you get many extra color schemes for your WordPress dashboard. Now this tutorial is on new, light weight but very interesting free plugin called Color Schemes Roulette, the plugin is made for changing your admin colors in random and yes it is compatible with Admin Color Schemes plugin.
Admin Color Schemes, the plugin that brings new extra color schemes in WordPress admin area dashboard has been updated for new 3.8 update of WordPress. Likewise now WordPress already provides you six different admin color schems, now you can add up some more simply by using this WordPress plugin.
Aubergine, by Kate Whitley & Kelly Dwan
Flat, by Mel Choyce
Vineyard, by Kate & Dave Whitley
All your awesome color choices
So first of all install and activate Admin Color Schemes plugin. Upon activation the plugin adds new color schemes which can be managed from same old user profile page using the color scheme selector radio buttons.