hsv2rgb.py

def hsv2rgb(h,s,v):
    """
    0 <= h < 360    # Hue
    0 <= s <= 255   # Saturation
    0 <= v <= 255   # Value

    Hue:  position on the color wheel (0 is red)
    Saturation:  How much of the color is present
    Value:  How bright the resultant color is

    So bright red would be (0, 255, 255) and white would be (*, 0, 255).  Black is (*, *, 0).
    """
    s = s / 255.0
    v = v / 255.0

    c = v * s
    x = c * (1 - math.fabs((h / 60) % 2 - 1))
    m = v - c

    if h < 60:
        rgb = (c, x, 0)
    elif h < 120:
        rgb =  (x, c, 0)
    elif h < 180:
        rgb =  (0, c, x)
    elif h < 240:
        rgb =  (0, x, c)
    elif h < 300:
        rgb =  (x, 0, c)
    else:
        rgb =  (c, 0, x)

    return (int((rgb[0]+m) * 255), int((rgb[1]+m)*255), int((rgb[2]+m)*255))