This hack will let you have styles and colors that you normally can't receive when creating new characters. It will let you have hair colors not even released in the makeup kits.
This works only for hair color, skin color, sprite style, and sprite color
***WARNING*** Do NOT make any of your char hot pink. This errors people and you will get permabanned on ALL your accounts.
Use Cheat Engine
[Howto]
So if I wanted to change my haircolor to a bright red,
Change value type to 2byte
Go to character creation screen
Change the hair color to option 4
Scan value 4 in Cheat Engine
Repeat until you have one or two addresses (if it is option 8, scan value 8. if it is option 1, scan value 1)
Add the address to your CT and freeze it. Change the value to whatever you want, then ingame hit the -> button then <- button for hair color. I believe value 55 is a bright red color, so I would change the value to 55.
Hair colors range from values 1-64 before becoming pink
Skin color becomes pink after the default values
Sprite style range is 1-15
Sprite color I forgot.