Great brand guidelines html page by Google just for Android.
01/ Android Robot
Can be used, reproduced, and modified freely in marketing communications. Our standard color value for print is PMS 376C. Our online hex color is #A4C639. When using the Android Robot or any modification of it, proper attribution is required under the terms of the Creative Commons Attribution license.
Portions of this page are reproduced from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.
The Collective Agency : : Marketing, Creative & Innovation for Faith-Based Impact 