android – 如何根据十六进制颜色代码给出颜色名称？

public Boolean onTouch(View v,MotionEvent event) {
                // get x coordinates
                int x = (int) event.getX();
                // get y coordinates
                int y = (int) event.getY();
                // get bitmap in touch listener
                final Bitmap bitmap = ((BitmapDrawablE) image.getDrawable()).getBitmap();
                //xand y coordinates stored in to pixel
                int pixel = bitmap.getPixel(x,y);
                //RGB values
                redValue = Color.red(pixel);
                blueValue = Color.blue(pixel);
                greenValue = Color.green(pixel); 

                SELEcted_colour.setText(""+redValue+""+blueValue+""+greenvalue);
                SELEcted_colour.setText("touched color:" + "#" + Integer.toHexString(redvalue) + Integer.toHexString(greenvalue) + Integer.toHexString(bluevalue));

                SELEcted_colour.setTextColor(pixel);

                return false;
            }
        });