Molex is a legacy plug that most things don't use anymore, but certain components (e.g. coolers and lighting) still use it. EVGA makes only two 450 watt Bronze power supplies. Here is the
instruction manual for one (i.e. B3 Series), and here is the
instruction manual for the other (i.e. Bronze Series). Use whichever manual goes with your PSU to find out how many Molex connectors.
Based on a quick look, it seems like the B3 Series has three (3) molex connectors plus one going to an FDD adapter (for old-school floppy disks), and the Bronze Series appears to have the same setup.
Rather than trying to figure out if you have enough molex connectors, you can actually challenge yourself to use all three. I'll give you a high-five if your build needs more than one for your Hue. But in case you do need four or more, you can just buy a
SATA to Molex Adapter for about $2 or $3. Your PSU only has two SATA plugs, but you can break each SATA plug out to three SATAs with one Molex using
something like this for about $4.
As long as you don't exceed the rated power of your PSU, or of any individual plug (check manual for that), then you'll be fine. There are so many cable adapters that power is your only real limitation. Good luck!