AJ Troxell

With the Custom Login Page, you can change the background image of your login page, the background image/colo of your login form div, the main logo image of your login page, and add custom CSS. 
All through a simple interface. Remember to view the Help tab at the top of the settings page for the plugin.

Custom Login Page

Wordpress Custom Login Page allows you to change the background image, logo, form div attributes, and custom css of you Wordpress login page.

Muhammad Alnajlat

Light, fast and easy-to-use plugin for branding WordPress login page by setting your brand logo and theme color and extra simple styles.
What you can do with Brand My Login:
<ul>
<li>The simplest things you need to brand your login page.</li>
</ul>

Brand My Login

Brand and style your WordPress login page quickly and lightly.

Custom Login Page vs Brand My Login