Found the color byte in logbook pointers:
Exactly 0x20 down from where the logbook pointer in the character block points too
there will be:
RRGGBBFF
The code will be entered as FFBBGGRR for the value.
Example:
Catria (DLC)'s color is 0887F1FF
MU Purple color is: C8A2D6FF
and if you plug it into
http://www.w3schools.com/tags/ref_colorpicker.asp
you get exactly the colors you see in-game
Keep in mind, your logbook pointers change each time your logbook updates and you reset the game. So you will need an updated dump.
This is only one instance though. I need to work on finding every instance.
You will actually have to search for every MU block for that MU and replace the color.
Basically, go to character block, grab your MU's ORIGINAL hair color. Then CTRL F for it, get the address, F3 for next, F3 for next, and make a code that replaces every single one of your original hair color with the new one.
Updated Character Block Data
To completely change my hair color
0099A2D0 FFF18708
0099A43C FFF18708
009B41D0 FFF18708
016349B9 FFF18708
0163563A FFF18708
016399C8 FFF18708
019B7EB8 FFF18708
019B960C FFF18708
019B96DC FFF18708
http://i.imgur.com/ncIYpPv.png
Success!
And Video Proof
https://www.youtube.com/watch?v=0vpiGIFNGn8