Brand and model of the bulbs? There may be different alternatives for different models. For example, there’s a community-created edge driver for bulbs connected to a hue bridge which can use the hue groups feature.
[ST Edge] Philips Hue LAN [BETA]
Also, it may help to understand that edge drivers are only a replacement for the old Groovy device type handlers (DTH). There are no “edge smartapps.” That’s because edge is for things that run on a local hub, and we are only allowed to add custom edge drivers, we are not allowed to add the equivalent of the old custom groovy smartapps.
Instead, those are now handled with automations of various kinds.
Hopefully someone will have a specific answer for your question about the color coordinator. In the meantime, you might find the following helpful in general as you look for replacements for various custom smartapps: