I know this is a sideways answer to your original question, but I just wanted to mention that Hue bulbs, like other bulbs which have radios in them, are designed to always have power. Not just because that way they can hear the next “on” command from the network but also because the inrush current when power is restored can, overtime, damage the radio and significantly shorten the life of these expensive bulbs. So they are not intended to be operated with regular light switches that cut current to them. It’s OK if there’s an occasional rare power outage, but if you are using dumb switches to turn these bulbs on and off on a regular basis, your expensive smart bulbs are going to become much more expensive.
Fortunately, there are multiple ways to address this issue, and they would also address the question that you had in your first post. By setting up a switch which doesn’t actually cut current to the bulb, you don’t lose your existing color settings. 
See the following FAQ which discusses a number of different alternatives for this. (This is a clickable link)