code: def rgb_to_yiq(r, g=None, b=None):
    
    if type(r) in [list,tuple]:
      r, g, b = r
  
    y = (r * 0.29895808) + (g * 0.58660979) + (b *0.11443213)
    i = (r * 0.59590296) - (g * 0.27405705) - (b *0.32184591)
    q = (r * 0.21133576) - (g * 0.52263517) + (b *0.31129940)
    return (y, i, q)
docs: Convert the color from RGB to YIQ.
  
    Parameters:
      :r:
        The Red component value [0...1]
      :g:
        The Green component value [0...1]
      :b:
        The Blue component value [0...1]
  
    Returns:
      The color as an (y, i, q) tuple in the range:
      y[0...1],
      i[0...1],
      q[0...1]
  
    >>> '(%g, %g, %g)' % rgb_to_yiq(1, 0.5, 0)
    '(0.592263, 0.458874, -0.0499818)'