Color Mixer

def mix_colors(c1, c2):
    color_rgb = {
        "red":    (255, 0, 0),
        "green":  (0, 255, 0),
        "blue":   (0, 0, 255),
        "white":  (255, 255, 255),
        "black":  (0, 0, 0),
        "yellow": (255, 255, 0),
        "cyan":   (0, 255, 255),
        "purple": (128, 0, 128),
        "orange": (255, 165, 0),
    }
    named_mixes = {
        ("red",   "blue"):   "Purple",
        ("blue",  "red"):    "Purple",
        ("red",   "yellow"): "Orange",
        ("yellow","red"):    "Orange",
        ("blue",  "yellow"): "Green",
        ("yellow","blue"):   "Green",
        ("red",   "white"):  "Pink",
        ("white", "red"):    "Pink",
        ("black", "white"):  "Grey",
        ("white", "black"):  "Grey",
    }
    if c1 not in color_rgb or c2 not in color_rgb:
        return None, None, "Invalid color!"
    r1, g1, b1 = color_rgb[c1]
    r2, g2, b2 = color_rgb[c2]
    mixed    = ((r1+r2)//2, (g1+g2)//2, (b1+b2)//2)
    hex_code = "#{:02X}{:02X}{:02X}".format(*mixed)
    result   = named_mixes.get((c1, c2), "Custom Color")
    return mixed, hex_code, result

available = ["red","green","blue","white","black","yellow","cyan","purple","orange"]
print("=== Color Mixer ===")
print(f"Available: {', '.join(available)}")

while True:
    c1 = input("\nColor 1 (q=quit): ").lower()
    if c1 == "q": break
    c2 = input("Color 2: ").lower()
    rgb, hex_c, result = mix_colors(c1, c2)
    if rgb:
        print(f"\n  {c1} + {c2} = {result}")
        print(f"  RGB : {rgb}")
        print(f"  HEX : {hex_c}")
    else:
        print(f"  Error: {result}")