I think the color is fine and certainly not too much but the intensity is likely too much.. 100% is a lot depending on how high you have the lights above the water. Mine are 10-12" above the water and I never exceed 78% and my peak intensity is only 4 hours a day out of my 12 hour photo period. If you are at 100% intensity after 3 months, you certainly didn't acclimate your corals to the light properly. I would have started at around 50% intensity and worked your way up 5% a month. Then once you start seeing adverse reactions for the corals, you back off 3-5% and leave it. If after a month at that level, everything seems OK, you can try increasing your intensity again at the same rate.