gistfile1.txt

        imgUsrClrId.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                               //***********************Get the position of the screen on image***************************//
                float eventX = event.getX();
                float eventY = event.getY();
                float[] eventXY = new float[] {eventX, eventY};
                //***********************Get the position of the screen on image***************************//

                //***********************Get the position of the image on image***************************//
                Matrix invertMatrix = new Matrix();
                ((ImageView)imgUsrClrId).getImageMatrix().invert(invertMatrix);

                invertMatrix.mapPoints(eventXY);
                int x = Integer.valueOf((int)eventXY[0]);
                int y = Integer.valueOf((int)eventXY[1]);
                //***********************Get the position of the image on image***************************//

                //***********************Get the Size of the Drawable image***************************//
                Drawable imgDrawable = ((ImageView)imgUsrClrId).getDrawable();
                Bitmap bitmap = ((BitmapDrawable)imgDrawable).getBitmap();
                //***********************Get the Size of the Drawable image***************************//

                //***********************Get the Color code of the image*****************************//
                //Limit x, y range within bitmap
                if(x < 0){
                    x = 0;
                }else if(x > bitmap.getWidth()-1){
                    x = bitmap.getWidth()-1;
                }

                if(y < 0){
                    y = 0;
                }else if(y > bitmap.getHeight()-1){
                    y = bitmap.getHeight()-1;
                }

                //Get the hexadecimal value w.r.t x and y Co-ordinates
                int touchedRGB = bitmap.getPixel(x, y);

                txtColorCodeId.setText("#" + Integer.toHexString(touchedRGB));
                txtColorCodeId.setTextColor(touchedRGB);
                //***********************Get the Color code of the image****************************//

                return true;
            }
        });