@ Bonesbobman
Orange is just a caution color going into red color is a possible danger level, but that is not set in stone, because some memory modules may require operating voltages that take you into the red to run the rated memory speed.
Motherboard led color is to keep you well on the safe side of settings, and it helps tremendously to know what each component requires and can run above specs, like your CPU.
So since you are new to overclocking I suggest you get into studying how to do it and get a good understanding under your belt first, then led color won't intimidate you as you'll know just how far you can go, no matter what the led color is.