Yes.
"Make sure your Hue bulbs are connected and powered on, then head into the Alexa app (which you should have already installed when setting up your Echo). Select Devices, then the Plus button, then Add Device. After a few seconds of searching, your Hue lights should be detected and added.
If you prefer you can use a voice command instead: say "Alexa, find my devices" and your Alexa smart speaker will scan your house for compatible Hue bulbs.
However you add the Hue bulbs, once they're connected you can control them through the Alexa app or via your voice, with commands like "Alexa, turn the bedroom lights off".
Through the Alexa app you can group your Hue bulbs together and even group them with smart lights of a different brand. However, without the Hue Bridge you can't create custom scenes, have lights turn on or off based on your location, or access various other advanced features available in the Hue app." -the-ambient.com