Check out example codes for "color code green". It will help you in understanding the concepts better.

Code Example 1

rgb(255,255,0)  /* yellow*/  Hex  #FFFF00

Code Example 2

rgb(255,255,255)	/*white*/  Hex 	#FFFFFF

Code Example 3

rgb(0,128,0)  /*green*/  Hex #008000

Learn ReactJs, React Native from akashmittal.com