I’m trying to figure out the reason why you’re so eager to go down this rabbit hole.
The only thing this would make a difference to is growth rate, which is a fine reason if that is your goal, or of course if it’s solely for your own curiosity.
However, many people go down this rabbit hole for the wrong reasons, and when their PH range is considered to be just fine, which in turn gives them nothing other than a faster fall downhill, accelerating the affects of the problem they already been experiencing because they were focused on the wrong aspect of reef keeping.
Colors and coral health in general are controlled by stability, nutrient management, proper trace elements, bacterial diversity and correct lighting and flow - so if you’re experiencing an actual problem that needs fixing, I would focus on these instead.