How to determine for Android gradient

I created a gradient out of this logo's orange.

<gradient
    android:type="linear"
    android:startColor="#FF4401"
    android:endColor="#00ffffff"
    android:angle="90"/>

Here I needed to change the startColor to #FF4401 instead of using its actual value #f26922 or something around that value.

I need to do the same for green. Green's colour is #7cba42.

How can I find out the startColor for green so that it creates the same feel as orange?