def cmyk2rgb(cmyk, density=1):
    """Convert from a CMYK color tuple to an RGB color tuple"""
    c, m, y, k = cmyk
    r = 1.0 - min(1.0, c + k)
    g = 1.0 - min(1.0, m + k)
    b = 1.0 - min(1.0, y + k)
    return r, g, b
