DJ vs. Venue Uplighting
Venues sometimes provide uplighting as an add-on. They can match whatever color you’re looking for. However, I do have a couple issues with them.
One is that a dark dance floor is usually more inviting to shy dancers. Unfortunately the venue's uplights are almost always left on once the dancing starts (full brightness too). The venue typically has one person who knows how to operate the lights, and that person probably won’t be there during your reception.
The second reason I prefer my uplights is the large level of control I have over them. I can dim them, sync them up to the music, or turn the whole room blue if playing the song "I'm Blue”. I can have them change colors slowly during a couple’s dance or strobe them at exciting moments. Mostly though, I can ensure the dance floor feels comfortable so the guests can lose themselves and have a blast.