从android SeekBar中的LinearGradient获取准确的颜色代码

I have a requirement in my project to create SeekBar filled with different shades of color. For that purpose, I am using LinearGradient by assigning start and end color value and it is also works like charm. But I have no idea how to get the exact color code from the seekbar when the position changes. I have a requirement in my project to create Se