The colors of Duolingo are #58cc02, #89e219, #4b4b4b, #ffffff, #1cb0f6, #ff4b4b, #ffc800, #ff9600, #ce82ff, #2b70c9, #58cc02, #43c000 according to www.duolingo.com.
#58cc02
#89e219
#4b4b4b
#ffffff
#1cb0f6
#ff4b4b
#ffc800
#ff9600
#ce82ff
#2b70c9
#43c000
For more about Duolingo, visit their official website.
