A character's hair color different in Unity compared to iClone

I got a character (fbx) created by iClone, and I have some problems importing the fbx file into Unity.
The charter had some hair color issues when I imported. The hair color is supposed to be dark brown (close to black), but it is blond hair showing in Unity.
I changed the texture color using the image editing tool, but it still remains the same. Also, change some shader but not effect on the hair.
This is for VR, so the build is Android.
Is there any solution to fix the hair color of the character?