hex to RGB

for hex to RGB you can use

r = hex >> 16
g = (hex ^ hex >> 16 << 16) >> 8
b = hex >> 8 << 8 ^ hex

which if all being done at once, can be reduced to

r = hex >> 16;
temp = hex ^ r << 16;
g = temp >> 8;
b = temp ^ g << 8;

going back to hex is simply

r << 16 ^ g << 8 ^ b