Show an R,G,B color from the terminal using python and PIL

showcolor.sh

showcolor () {
  if [ "$#" -lt 3 ]; then
     echo "need to give 3 (r,g,b) values"
     return 1
  fi
  python -c "from PIL import Image; Image.new('RGB', (300, 300), ($1, $2, $3)).show()"
}

# use like 
# $ showcolor 125 125 200
# to open a 300x300 window with the color RGB(125, 125, 200)