It is possible, but not with your existing switches.
Smart bulbs have to be always kept on power. Otherwise there’s no power for the radio to hear the next command to turn on. So you can’t have a switch that turns off current to the bulb.
In addition, you will find that the user manual for almost all brands will tell you to always keep the bulb on power. The other reason for that is that when you turn on the current there is a rush of high power and this can damage the radio over time, reducing the lifetime of what are already quite expensive bulbs.
Finally, you can’t use a dumb dimmer and a smart bulb because the dimming will get out of sync. in fact, you can burn out the bulb, the switch, or both.
There is a simple solution to this issue, which is to replace the existing switch with one which does not cut current. Since it sounds like you are in Europe or the UK, based on the specifications you listed for the lamps (and the fact that you spelled colour correctly ), then by far the easiest way to do this is to get the hue bridge and to use one of the batteryfree “friends of Hue” switches. In Europe, these are available from a number of different manufacturers with different looks. They all work fine.
That way when you press on the switch, it sends a message to the hue bridge which sends a message to the smart bulb. But the bulb always has current to hear the next message, whether you start from the app, the switch on the wall, a voice assistant like Alexa, or a home automation rule.
So that’s the easiest way. There are some other methods that we can talk about, but they can get quite complex and would likely require rewiring some of the circuits.